usb: u132-hcd driver: semaphore to mutex

Signed-off-by: Daniel Walker <dwalker@mvista.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/usb/host/u132-hcd.c b/drivers/usb/host/u132-hcd.c
index 28b8684942d3d54696e10820bd6b8918a2b74fca..4616a880d89cb5d2ad163c33d3f1086a718a5c16 100644 (file)
--- a/drivers/usb/host/u132-hcd.c
+++ b/drivers/usb/host/u132-hcd.c
@@ -184,7 +184,7 @@ struct u132 {
        struct kref kref;
        struct list_head u132_list;
        struct mutex sw_lock;
-       struct semaphore scheduler_lock;
+       struct mutex scheduler_lock;
        struct u132_platform_data *board;
        struct platform_device *platform_dev;
        struct u132_ring ring[MAX_U132_RINGS];
@@ -535,12 +535,12 @@ static void u132_hcd_giveback_urb(struct u132 *u132, struct u132_endp *endp,
                spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
                kfree(urbq);
        }
-       down(&u132->scheduler_lock);
+       mutex_lock(&u132->scheduler_lock);
        ring = endp->ring;
        ring->in_use = 0;
        u132_ring_cancel_work(u132, ring);
        u132_ring_queue_work(u132, ring, 0);
-       up(&u132->scheduler_lock);
+       mutex_unlock(&u132->scheduler_lock);
        u132_endp_put_kref(u132, endp);
        usb_hcd_giveback_urb(hcd, urb, status);
        return;
@@ -631,22 +631,22 @@ static void u132_hcd_interrupt_recv(void *data, struct urb *urb, u8 *buf,
        struct u132 *u132 = endp->u132;
        u8 address = u132->addr[endp->usb_addr].address;
        struct u132_udev *udev = &u132->udev[address];
-       down(&u132->scheduler_lock);
+       mutex_lock(&u132->scheduler_lock);
        if (u132->going > 1) {
                dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
                        , u132->going);
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
                return;
        } else if (endp->dequeueing) {
                endp->dequeueing = 0;
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
                return;
        } else if (u132->going > 0) {
                dev_err(&u132->platform_dev->dev, "device is being removed "
                                "urb=%p\n", urb);
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
                return;
        } else if (!urb->unlinked) {
@@ -666,7 +666,7 @@ static void u132_hcd_interrupt_recv(void *data, struct urb *urb, u8 *buf,
                                1 & toggle_bits);
                        if (urb->actual_length > 0) {
                                int retval;
-                               up(&u132->scheduler_lock);
+                               mutex_unlock(&u132->scheduler_lock);
                                retval = edset_single(u132, ring, endp, urb,
                                        address, endp->toggle_bits,
                                        u132_hcd_interrupt_recv);
@@ -680,7 +680,7 @@ static void u132_hcd_interrupt_recv(void *data, struct urb *urb, u8 *buf,
                                        msecs_to_jiffies(urb->interval);
                                u132_ring_cancel_work(u132, ring);
                                u132_ring_queue_work(u132, ring, 0);
-                               up(&u132->scheduler_lock);
+                               mutex_unlock(&u132->scheduler_lock);
                                u132_endp_put_kref(u132, endp);
                        }
                        return;
@@ -689,7 +689,7 @@ static void u132_hcd_interrupt_recv(void *data, struct urb *urb, u8 *buf,
                        endp->toggle_bits = toggle_bits;
                        usb_settoggle(udev->usb_device, endp->usb_endp, 0,
                                1 & toggle_bits);
-                       up(&u132->scheduler_lock);
+                       mutex_unlock(&u132->scheduler_lock);
                        u132_hcd_giveback_urb(u132, endp, urb, 0);
                        return;
                } else {
@@ -709,7 +709,7 @@ static void u132_hcd_interrupt_recv(void *data, struct urb *urb, u8 *buf,
                                        "g back INTERRUPT %s\n", urb,
                                        cc_to_text[condition_code]);
                        }
-                       up(&u132->scheduler_lock);
+                       mutex_unlock(&u132->scheduler_lock);
                        u132_hcd_giveback_urb(u132, endp, urb,
                                cc_to_error[condition_code]);
                        return;
@@ -717,7 +717,7 @@ static void u132_hcd_interrupt_recv(void *data, struct urb *urb, u8 *buf,
        } else {
                dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
                                "unlinked=%d\n", urb, urb->unlinked);
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_hcd_giveback_urb(u132, endp, urb, 0);
                return;
        }
@@ -730,22 +730,22 @@ static void u132_hcd_bulk_output_sent(void *data, struct urb *urb, u8 *buf,
        struct u132_endp *endp = data;
        struct u132 *u132 = endp->u132;
        u8 address = u132->addr[endp->usb_addr].address;
-       down(&u132->scheduler_lock);
+       mutex_lock(&u132->scheduler_lock);
        if (u132->going > 1) {
                dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
                        , u132->going);
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
                return;
        } else if (endp->dequeueing) {
                endp->dequeueing = 0;
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
                return;
        } else if (u132->going > 0) {
                dev_err(&u132->platform_dev->dev, "device is being removed "
                                "urb=%p\n", urb);
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
                return;
        } else if (!urb->unlinked) {
@@ -754,21 +754,21 @@ static void u132_hcd_bulk_output_sent(void *data, struct urb *urb, u8 *buf,
                endp->toggle_bits = toggle_bits;
                if (urb->transfer_buffer_length > urb->actual_length) {
                        int retval;
-                       up(&u132->scheduler_lock);
+                       mutex_unlock(&u132->scheduler_lock);
                        retval = edset_output(u132, ring, endp, urb, address,
                                endp->toggle_bits, u132_hcd_bulk_output_sent);
                        if (retval != 0)
                                u132_hcd_giveback_urb(u132, endp, urb, retval);
                        return;
                } else {
-                       up(&u132->scheduler_lock);
+                       mutex_unlock(&u132->scheduler_lock);
                        u132_hcd_giveback_urb(u132, endp, urb, 0);
                        return;
                }
        } else {
                dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
                                "unlinked=%d\n", urb, urb->unlinked);
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_hcd_giveback_urb(u132, endp, urb, 0);
                return;
        }
@@ -782,22 +782,22 @@ static void u132_hcd_bulk_input_recv(void *data, struct urb *urb, u8 *buf,
        struct u132 *u132 = endp->u132;
        u8 address = u132->addr[endp->usb_addr].address;
        struct u132_udev *udev = &u132->udev[address];
-       down(&u132->scheduler_lock);
+       mutex_lock(&u132->scheduler_lock);
        if (u132->going > 1) {
                dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
                        , u132->going);
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
                return;
        } else if (endp->dequeueing) {
                endp->dequeueing = 0;
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
                return;
        } else if (u132->going > 0) {
                dev_err(&u132->platform_dev->dev, "device is being removed "
                                "urb=%p\n", urb);
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
                return;
        } else if (!urb->unlinked) {
@@ -816,7 +816,7 @@ static void u132_hcd_bulk_input_recv(void *data, struct urb *urb, u8 *buf,
                        endp->toggle_bits = toggle_bits;
                        usb_settoggle(udev->usb_device, endp->usb_endp, 0,
                                1 & toggle_bits);
-                       up(&u132->scheduler_lock);
+                       mutex_unlock(&u132->scheduler_lock);
                        retval = usb_ftdi_elan_edset_input(u132->platform_dev,
                                ring->number, endp, urb, address,
                                endp->usb_endp, endp->toggle_bits,
@@ -828,7 +828,7 @@ static void u132_hcd_bulk_input_recv(void *data, struct urb *urb, u8 *buf,
                        endp->toggle_bits = toggle_bits;
                        usb_settoggle(udev->usb_device, endp->usb_endp, 0,
                                1 & toggle_bits);
-                       up(&u132->scheduler_lock);
+                       mutex_unlock(&u132->scheduler_lock);
                        u132_hcd_giveback_urb(u132, endp, urb,
                                cc_to_error[condition_code]);
                        return;
@@ -837,7 +837,7 @@ static void u132_hcd_bulk_input_recv(void *data, struct urb *urb, u8 *buf,
                        endp->toggle_bits = toggle_bits;
                        usb_settoggle(udev->usb_device, endp->usb_endp, 0,
                                1 & toggle_bits);
-                       up(&u132->scheduler_lock);
+                       mutex_unlock(&u132->scheduler_lock);
                        u132_hcd_giveback_urb(u132, endp, urb, 0);
                        return;
                } else if (condition_code == TD_DATAUNDERRUN) {
@@ -847,13 +847,13 @@ static void u132_hcd_bulk_input_recv(void *data, struct urb *urb, u8 *buf,
                        dev_warn(&u132->platform_dev->dev, "urb=%p(SHORT NOT OK"
                                ") giving back BULK IN %s\n", urb,
                                cc_to_text[condition_code]);
-                       up(&u132->scheduler_lock);
+                       mutex_unlock(&u132->scheduler_lock);
                        u132_hcd_giveback_urb(u132, endp, urb, 0);
                        return;
                } else if (condition_code == TD_CC_STALL) {
                        endp->toggle_bits = 0x2;
                        usb_settoggle(udev->usb_device, endp->usb_endp, 0, 0);
-                       up(&u132->scheduler_lock);
+                       mutex_unlock(&u132->scheduler_lock);
                        u132_hcd_giveback_urb(u132, endp, urb,
                                cc_to_error[condition_code]);
                        return;
@@ -863,7 +863,7 @@ static void u132_hcd_bulk_input_recv(void *data, struct urb *urb, u8 *buf,
                        dev_err(&u132->platform_dev->dev, "urb=%p giving back B"
                                "ULK IN code=%d %s\n", urb, condition_code,
                                cc_to_text[condition_code]);
-                       up(&u132->scheduler_lock);
+                       mutex_unlock(&u132->scheduler_lock);
                        u132_hcd_giveback_urb(u132, endp, urb,
                                cc_to_error[condition_code]);
                        return;
@@ -871,7 +871,7 @@ static void u132_hcd_bulk_input_recv(void *data, struct urb *urb, u8 *buf,
        } else {
                dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
                                "unlinked=%d\n", urb, urb->unlinked);
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_hcd_giveback_urb(u132, endp, urb, 0);
                return;
        }
@@ -883,32 +883,32 @@ static void u132_hcd_configure_empty_sent(void *data, struct urb *urb, u8 *buf,
 {
        struct u132_endp *endp = data;
        struct u132 *u132 = endp->u132;
-       down(&u132->scheduler_lock);
+       mutex_lock(&u132->scheduler_lock);
        if (u132->going > 1) {
                dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
                        , u132->going);
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
                return;
        } else if (endp->dequeueing) {
                endp->dequeueing = 0;
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
                return;
        } else if (u132->going > 0) {
                dev_err(&u132->platform_dev->dev, "device is being removed "
                                "urb=%p\n", urb);
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
                return;
        } else if (!urb->unlinked) {
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_hcd_giveback_urb(u132, endp, urb, 0);
                return;
        } else {
                dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
                                "unlinked=%d\n", urb, urb->unlinked);
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_hcd_giveback_urb(u132, endp, urb, 0);
                return;
        }
@@ -921,22 +921,22 @@ static void u132_hcd_configure_input_recv(void *data, struct urb *urb, u8 *buf,
        struct u132_endp *endp = data;
        struct u132 *u132 = endp->u132;
        u8 address = u132->addr[endp->usb_addr].address;
-       down(&u132->scheduler_lock);
+       mutex_lock(&u132->scheduler_lock);
        if (u132->going > 1) {
                dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
                        , u132->going);
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
                return;
        } else if (endp->dequeueing) {
                endp->dequeueing = 0;
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
                return;
        } else if (u132->going > 0) {
                dev_err(&u132->platform_dev->dev, "device is being removed "
                                "urb=%p\n", urb);
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
                return;
        } else if (!urb->unlinked) {
@@ -953,7 +953,7 @@ static void u132_hcd_configure_input_recv(void *data, struct urb *urb, u8 *buf,
                        TD_DATAUNDERRUN) && ((urb->transfer_flags &
                        URB_SHORT_NOT_OK) == 0))) {
                        int retval;
-                       up(&u132->scheduler_lock);
+                       mutex_unlock(&u132->scheduler_lock);
                        retval = usb_ftdi_elan_edset_empty(u132->platform_dev,
                                ring->number, endp, urb, address,
                                endp->usb_endp, 0x3,
@@ -962,14 +962,14 @@ static void u132_hcd_configure_input_recv(void *data, struct urb *urb, u8 *buf,
                                u132_hcd_giveback_urb(u132, endp, urb, retval);
                        return;
                } else if (condition_code == TD_CC_STALL) {
-                       up(&u132->scheduler_lock);
+                       mutex_unlock(&u132->scheduler_lock);
                        dev_warn(&u132->platform_dev->dev, "giving back SETUP I"
                                "NPUT STALL urb %p\n", urb);
                        u132_hcd_giveback_urb(u132, endp, urb,
                                cc_to_error[condition_code]);
                        return;
                } else {
-                       up(&u132->scheduler_lock);
+                       mutex_unlock(&u132->scheduler_lock);
                        dev_err(&u132->platform_dev->dev, "giving back SETUP IN"
                                "PUT %s urb %p\n", cc_to_text[condition_code],
                                urb);
@@ -980,7 +980,7 @@ static void u132_hcd_configure_input_recv(void *data, struct urb *urb, u8 *buf,
        } else {
                dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
                                "unlinked=%d\n", urb, urb->unlinked);
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_hcd_giveback_urb(u132, endp, urb, 0);
                return;
        }
@@ -992,32 +992,32 @@ static void u132_hcd_configure_empty_recv(void *data, struct urb *urb, u8 *buf,
 {
        struct u132_endp *endp = data;
        struct u132 *u132 = endp->u132;
-       down(&u132->scheduler_lock);
+       mutex_lock(&u132->scheduler_lock);
        if (u132->going > 1) {
                dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
                        , u132->going);
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
                return;
        } else if (endp->dequeueing) {
                endp->dequeueing = 0;
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
                return;
        } else if (u132->going > 0) {
                dev_err(&u132->platform_dev->dev, "device is being removed "
                                "urb=%p\n", urb);
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
                return;
        } else if (!urb->unlinked) {
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_hcd_giveback_urb(u132, endp, urb, 0);
                return;
        } else {
                dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
                                "unlinked=%d\n", urb, urb->unlinked);
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_hcd_giveback_urb(u132, endp, urb, 0);
                return;
        }
@@ -1030,29 +1030,29 @@ static void u132_hcd_configure_setup_sent(void *data, struct urb *urb, u8 *buf,
        struct u132_endp *endp = data;
        struct u132 *u132 = endp->u132;
        u8 address = u132->addr[endp->usb_addr].address;
-       down(&u132->scheduler_lock);
+       mutex_lock(&u132->scheduler_lock);
        if (u132->going > 1) {
                dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
                        , u132->going);
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
                return;
        } else if (endp->dequeueing) {
                endp->dequeueing = 0;
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
                return;
        } else if (u132->going > 0) {
                dev_err(&u132->platform_dev->dev, "device is being removed "
                                "urb=%p\n", urb);
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
                return;
        } else if (!urb->unlinked) {
                if (usb_pipein(urb->pipe)) {
                        int retval;
                        struct u132_ring *ring = endp->ring;
-                       up(&u132->scheduler_lock);
+                       mutex_unlock(&u132->scheduler_lock);
                        retval = usb_ftdi_elan_edset_input(u132->platform_dev,
                                ring->number, endp, urb, address,
                                endp->usb_endp, 0,
@@ -1063,7 +1063,7 @@ static void u132_hcd_configure_setup_sent(void *data, struct urb *urb, u8 *buf,
                } else {
                        int retval;
                        struct u132_ring *ring = endp->ring;
-                       up(&u132->scheduler_lock);
+                       mutex_unlock(&u132->scheduler_lock);
                        retval = usb_ftdi_elan_edset_input(u132->platform_dev,
                                ring->number, endp, urb, address,
                                endp->usb_endp, 0,
@@ -1075,7 +1075,7 @@ static void u132_hcd_configure_setup_sent(void *data, struct urb *urb, u8 *buf,
        } else {
                dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
                                "unlinked=%d\n", urb, urb->unlinked);
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_hcd_giveback_urb(u132, endp, urb, 0);
                return;
        }
@@ -1089,34 +1089,34 @@ static void u132_hcd_enumeration_empty_recv(void *data, struct urb *urb,
        struct u132 *u132 = endp->u132;
        u8 address = u132->addr[endp->usb_addr].address;
        struct u132_udev *udev = &u132->udev[address];
-       down(&u132->scheduler_lock);
+       mutex_lock(&u132->scheduler_lock);
        if (u132->going > 1) {
                dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
                        , u132->going);
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
                return;
        } else if (endp->dequeueing) {
                endp->dequeueing = 0;
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
                return;
        } else if (u132->going > 0) {
                dev_err(&u132->platform_dev->dev, "device is being removed "
                                "urb=%p\n", urb);
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
                return;
        } else if (!urb->unlinked) {
                u132->addr[0].address = 0;
                endp->usb_addr = udev->usb_addr;
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_hcd_giveback_urb(u132, endp, urb, 0);
                return;
        } else {
                dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
                                "unlinked=%d\n", urb, urb->unlinked);
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_hcd_giveback_urb(u132, endp, urb, 0);
                return;
        }
@@ -1128,28 +1128,28 @@ static void u132_hcd_enumeration_address_sent(void *data, struct urb *urb,
 {
        struct u132_endp *endp = data;
        struct u132 *u132 = endp->u132;
-       down(&u132->scheduler_lock);
+       mutex_lock(&u132->scheduler_lock);
        if (u132->going > 1) {
                dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
                        , u132->going);
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
                return;
        } else if (endp->dequeueing) {
                endp->dequeueing = 0;
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
                return;
        } else if (u132->going > 0) {
                dev_err(&u132->platform_dev->dev, "device is being removed "
                                "urb=%p\n", urb);
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
                return;
        } else if (!urb->unlinked) {
                int retval;
                struct u132_ring *ring = endp->ring;
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                retval = usb_ftdi_elan_edset_input(u132->platform_dev,
                        ring->number, endp, urb, 0, endp->usb_endp, 0,
                        u132_hcd_enumeration_empty_recv);
@@ -1159,7 +1159,7 @@ static void u132_hcd_enumeration_address_sent(void *data, struct urb *urb,
        } else {
                dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
                                "unlinked=%d\n", urb, urb->unlinked);
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_hcd_giveback_urb(u132, endp, urb, 0);
                return;
        }
@@ -1171,32 +1171,32 @@ static void u132_hcd_initial_empty_sent(void *data, struct urb *urb, u8 *buf,
 {
        struct u132_endp *endp = data;
        struct u132 *u132 = endp->u132;
-       down(&u132->scheduler_lock);
+       mutex_lock(&u132->scheduler_lock);
        if (u132->going > 1) {
                dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
                        , u132->going);
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
                return;
        } else if (endp->dequeueing) {
                endp->dequeueing = 0;
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
                return;
        } else if (u132->going > 0) {
                dev_err(&u132->platform_dev->dev, "device is being removed "
                                "urb=%p\n", urb);
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
                return;
        } else if (!urb->unlinked) {
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_hcd_giveback_urb(u132, endp, urb, 0);
                return;
        } else {
                dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
                                "unlinked=%d\n", urb, urb->unlinked);
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_hcd_giveback_urb(u132, endp, urb, 0);
                return;
        }
@@ -1209,22 +1209,22 @@ static void u132_hcd_initial_input_recv(void *data, struct urb *urb, u8 *buf,
        struct u132_endp *endp = data;
        struct u132 *u132 = endp->u132;
        u8 address = u132->addr[endp->usb_addr].address;
-       down(&u132->scheduler_lock);
+       mutex_lock(&u132->scheduler_lock);
        if (u132->going > 1) {
                dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
                        , u132->going);
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
                return;
        } else if (endp->dequeueing) {
                endp->dequeueing = 0;
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
                return;
        } else if (u132->going > 0) {
                dev_err(&u132->platform_dev->dev, "device is being removed "
                                "urb=%p\n", urb);
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
                return;
        } else if (!urb->unlinked) {
@@ -1238,7 +1238,7 @@ static void u132_hcd_initial_input_recv(void *data, struct urb *urb, u8 *buf,
                        *u++ = *b++;
 
                urb->actual_length = len;
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                retval = usb_ftdi_elan_edset_empty(u132->platform_dev,
                        ring->number, endp, urb, address, endp->usb_endp, 0x3,
                        u132_hcd_initial_empty_sent);
@@ -1248,7 +1248,7 @@ static void u132_hcd_initial_input_recv(void *data, struct urb *urb, u8 *buf,
        } else {
                dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
                                "unlinked=%d\n", urb, urb->unlinked);
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_hcd_giveback_urb(u132, endp, urb, 0);
                return;
        }
@@ -1261,28 +1261,28 @@ static void u132_hcd_initial_setup_sent(void *data, struct urb *urb, u8 *buf,
        struct u132_endp *endp = data;
        struct u132 *u132 = endp->u132;
        u8 address = u132->addr[endp->usb_addr].address;
-       down(&u132->scheduler_lock);
+       mutex_lock(&u132->scheduler_lock);
        if (u132->going > 1) {
                dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
                        , u132->going);
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
                return;
        } else if (endp->dequeueing) {
                endp->dequeueing = 0;
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
                return;
        } else if (u132->going > 0) {
                dev_err(&u132->platform_dev->dev, "device is being removed "
                                "urb=%p\n", urb);
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
                return;
        } else if (!urb->unlinked) {
                int retval;
                struct u132_ring *ring = endp->ring;
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                retval = usb_ftdi_elan_edset_input(u132->platform_dev,
                        ring->number, endp, urb, address, endp->usb_endp, 0,
                        u132_hcd_initial_input_recv);
@@ -1292,7 +1292,7 @@ static void u132_hcd_initial_setup_sent(void *data, struct urb *urb, u8 *buf,
        } else {
                dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
                                "unlinked=%d\n", urb, urb->unlinked);
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_hcd_giveback_urb(u132, endp, urb, 0);
                return;
        }
@@ -1307,9 +1307,9 @@ static void u132_hcd_ring_work_scheduler(struct work_struct *work)
        struct u132_ring *ring =
                container_of(work, struct u132_ring, scheduler.work);
        struct u132 *u132 = ring->u132;
-       down(&u132->scheduler_lock);
+       mutex_lock(&u132->scheduler_lock);
        if (ring->in_use) {
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_ring_put_kref(u132, ring);
                return;
        } else if (ring->curr_endp) {
@@ -1326,7 +1326,7 @@ static void u132_hcd_ring_work_scheduler(struct work_struct *work)
                                ring->curr_endp = endp;
                                u132_endp_cancel_work(u132, last_endp);
                                u132_endp_queue_work(u132, last_endp, 0);
-                               up(&u132->scheduler_lock);
+                               mutex_unlock(&u132->scheduler_lock);
                                u132_ring_put_kref(u132, ring);
                                return;
                        } else {
@@ -1340,7 +1340,7 @@ static void u132_hcd_ring_work_scheduler(struct work_struct *work)
                        last_endp->jiffies)) {
                        u132_endp_cancel_work(u132, last_endp);
                        u132_endp_queue_work(u132, last_endp, 0);
-                       up(&u132->scheduler_lock);
+                       mutex_unlock(&u132->scheduler_lock);
                        u132_ring_put_kref(u132, ring);
                        return;
                } else {
@@ -1350,15 +1350,15 @@ static void u132_hcd_ring_work_scheduler(struct work_struct *work)
                }
                if (wakeup > 0) {
                        u132_ring_requeue_work(u132, ring, wakeup);
-                       up(&u132->scheduler_lock);
+                       mutex_unlock(&u132->scheduler_lock);
                        return;
                } else {
-                       up(&u132->scheduler_lock);
+                       mutex_unlock(&u132->scheduler_lock);
                        u132_ring_put_kref(u132, ring);
                        return;
                }
        } else {
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_ring_put_kref(u132, ring);
                return;
        }
@@ -1370,32 +1370,32 @@ static void u132_hcd_endp_work_scheduler(struct work_struct *work)
        struct u132_endp *endp =
                container_of(work, struct u132_endp, scheduler.work);
        struct u132 *u132 = endp->u132;
-       down(&u132->scheduler_lock);
+       mutex_lock(&u132->scheduler_lock);
        ring = endp->ring;
        if (endp->edset_flush) {
                endp->edset_flush = 0;
                if (endp->dequeueing)
                        usb_ftdi_elan_edset_flush(u132->platform_dev,
                                ring->number, endp);
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_endp_put_kref(u132, endp);
                return;
        } else if (endp->active) {
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_endp_put_kref(u132, endp);
                return;
        } else if (ring->in_use) {
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_endp_put_kref(u132, endp);
                return;
        } else if (endp->queue_next == endp->queue_last) {
-               up(&u132->scheduler_lock);
+               mutex_unlock(&u132->scheduler_lock);
                u132_endp_put_kref(u132, endp);
                return;
        } else if (endp->pipetype == PIPE_INTERRUPT) {
                u8 address = u132->addr[endp->usb_addr].address;
                if (ring->in_use) {
-                       up(&u132->scheduler_lock);
+                       mutex_unlock(&u132->scheduler_lock);
                        u132_endp_put_kref(u132, endp);
                        return;
                } else {
@@ -1405,7 +1405,7 @@ static void u132_hcd_endp_work_scheduler(struct work_struct *work)
                        endp->active = 1;
                        ring->curr_endp = endp;
                        ring->in_use = 1;
-                       up(&u132->scheduler_lock);
+                       mutex_unlock(&u132->scheduler_lock);
                        retval = edset_single(u132, ring, endp, urb, address,
                                endp->toggle_bits, u132_hcd_interrupt_recv);
                        if (retval != 0)
@@ -1415,7 +1415,7 @@ static void u132_hcd_endp_work_scheduler(struct work_struct *work)
        } else if (endp->pipetype == PIPE_CONTROL) {
                u8 address = u132->addr[endp->usb_addr].address;
                if (ring->in_use) {
-                       up(&u132->scheduler_lock);
+                       mutex_unlock(&u132->scheduler_lock);
                        u132_endp_put_kref(u132, endp);
                        return;
                } else if (address == 0) {
@@ -1425,7 +1425,7 @@ static void u132_hcd_endp_work_scheduler(struct work_struct *work)
                        endp->active = 1;
                        ring->curr_endp = endp;
                        ring->in_use = 1;
-                       up(&u132->scheduler_lock);
+                       mutex_unlock(&u132->scheduler_lock);
                        retval = edset_setup(u132, ring, endp, urb, address,
                                0x2, u132_hcd_initial_setup_sent);
                        if (retval != 0)
@@ -1438,7 +1438,7 @@ static void u132_hcd_endp_work_scheduler(struct work_struct *work)
                        endp->active = 1;
                        ring->curr_endp = endp;
                        ring->in_use = 1;
-                       up(&u132->scheduler_lock);
+                       mutex_unlock(&u132->scheduler_lock);
                        retval = edset_setup(u132, ring, endp, urb, 0, 0x2,
                                u132_hcd_enumeration_address_sent);
                        if (retval != 0)
@@ -1452,7 +1452,7 @@ static void u132_hcd_endp_work_scheduler(struct work_struct *work)
                        endp->active = 1;
                        ring->curr_endp = endp;
                        ring->in_use = 1;
-                       up(&u132->scheduler_lock);
+                       mutex_unlock(&u132->scheduler_lock);
                        retval = edset_setup(u132, ring, endp, urb, address,
                                0x2, u132_hcd_configure_setup_sent);
                        if (retval != 0)
@@ -1463,7 +1463,7 @@ static void u132_hcd_endp_work_scheduler(struct work_struct *work)
                if (endp->input) {
                        u8 address = u132->addr[endp->usb_addr].address;
                        if (ring->in_use) {
-                               up(&u132->scheduler_lock);
+                               mutex_unlock(&u132->scheduler_lock);
                                u132_endp_put_kref(u132, endp);
                                return;
                        } else {
@@ -1473,7 +1473,7 @@ static void u132_hcd_endp_work_scheduler(struct work_struct *work)
                                endp->active = 1;
                                ring->curr_endp = endp;
                                ring->in_use = 1;
-                               up(&u132->scheduler_lock);
+                               mutex_unlock(&u132->scheduler_lock);
                                retval = edset_input(u132, ring, endp, urb,
                                        address, endp->toggle_bits,
                                        u132_hcd_bulk_input_recv);
@@ -1486,7 +1486,7 @@ static void u132_hcd_endp_work_scheduler(struct work_struct *work)
                } else {        /* output pipe */
                        u8 address = u132->addr[endp->usb_addr].address;
                        if (ring->in_use) {
-                               up(&u132->scheduler_lock);
+                               mutex_unlock(&u132->scheduler_lock);
                                u132_endp_put_kref(u132, endp);
                                return;
                        } else {
@@ -1496,7 +1496,7 @@ static void u132_hcd_endp_work_scheduler(struct work_struct *work)
                                endp->active = 1;
                                ring->curr_endp = endp;
                                ring->in_use = 1;
-                               up(&u132->scheduler_lock);
+                               mutex_unlock(&u132->scheduler_lock);
                                retval = edset_output(u132, ring, endp, urb,
                                        address, endp->toggle_bits,
                                        u132_hcd_bulk_output_sent);
@@ -3085,7 +3085,7 @@ static void u132_initialise(struct u132 *u132, struct platform_device *pdev)
        u132->power = 0;
        u132->reset = 0;
        mutex_init(&u132->sw_lock);
-       init_MUTEX(&u132->scheduler_lock);
+       mutex_init(&u132->scheduler_lock);
        while (rings-- > 0) {
                struct u132_ring *ring = &u132->ring[rings];
                ring->u132 = u132;