V4L/DVB (3569): PATCH: switch cpia2 to mutexes and use ioctl 32 compat lib func

[linux-2.6] / drivers / media / video / cpia2 / cpia2_v4l.c

diff --git a/drivers/media/video/cpia2/cpia2_v4l.c b/drivers/media/video/cpia2/cpia2_v4l.c
index 08f8be345fa80fa80f547bcdc68c9baeb4507c89..481e178ef56df58b197463a0ba250d94811b79d3 100644 (file)
--- a/drivers/media/video/cpia2/cpia2_v4l.c
+++ b/drivers/media/video/cpia2/cpia2_v4l.c
@@ -255,7 +255,7 @@ static int cpia2_open(struct inode *inode, struct file *file)
                return -ENODEV;
        }
 
-       if(down_interruptible(&cam->busy_lock))
+       if(mutex_lock_interruptible(&cam->busy_lock))
                return -ERESTARTSYS;
 
        if(!cam->present) {
@@ -299,7 +299,7 @@ skip_init:
        cpia2_dbg_dump_registers(cam);
 
 err_return:
-       up(&cam->busy_lock);
+       mutex_unlock(&cam->busy_lock);
        return retval;
 }
 
@@ -314,7 +314,7 @@ static int cpia2_close(struct inode *inode, struct file *file)
        struct camera_data *cam = video_get_drvdata(dev);
        struct cpia2_fh *fh = file->private_data;
 
-       down(&cam->busy_lock);
+       mutex_lock(&cam->busy_lock);
 
        if (cam->present &&
            (cam->open_count == 1
@@ -347,7 +347,7 @@ static int cpia2_close(struct inode *inode, struct file *file)
                }
        }
 
-       up(&cam->busy_lock);
+       mutex_unlock(&cam->busy_lock);
 
        return 0;
 }
@@ -523,11 +523,11 @@ static int sync(struct camera_data *cam, int frame_nr)
                        return 0;
                }
 
-               up(&cam->busy_lock);
+               mutex_unlock(&cam->busy_lock);
                wait_event_interruptible(cam->wq_stream,
                                         !cam->streaming ||
                                         frame->status == FRAME_READY);
-               down(&cam->busy_lock);
+               mutex_lock(&cam->busy_lock);
                if (signal_pending(current))
                        return -ERESTARTSYS;
                if(!cam->present)
@@ -1544,11 +1544,11 @@ static int ioctl_dqbuf(void *arg,struct camera_data *cam, struct file *file)
        if(frame < 0) {
                /* Wait for a frame to become available */
                struct framebuf *cb=cam->curbuff;
-               up(&cam->busy_lock);
+               mutex_unlock(&cam->busy_lock);
                wait_event_interruptible(cam->wq_stream,
                                         !cam->present ||
                                         (cb=cam->curbuff)->status == FRAME_READY);
-               down(&cam->busy_lock);
+               mutex_lock(&cam->busy_lock);
                if (signal_pending(current))
                        return -ERESTARTSYS;
                if(!cam->present)
@@ -1591,11 +1591,11 @@ static int cpia2_do_ioctl(struct inode *inode, struct file *file,
                return -ENOTTY;
 
        /* make this _really_ smp-safe */
-       if (down_interruptible(&cam->busy_lock))
+       if (mutex_lock_interruptible(&cam->busy_lock))
                return -ERESTARTSYS;
 
        if (!cam->present) {
-               up(&cam->busy_lock);
+               mutex_unlock(&cam->busy_lock);
                return -ENODEV;
        }
 
@@ -1608,7 +1608,7 @@ static int cpia2_do_ioctl(struct inode *inode, struct file *file,
                struct cpia2_fh *fh = file->private_data;
                retval = v4l2_prio_check(&cam->prio, &fh->prio);
                if(retval) {
-                       up(&cam->busy_lock);
+                       mutex_unlock(&cam->busy_lock);
                        return retval;
                }
                break;
@@ -1618,7 +1618,7 @@ static int cpia2_do_ioctl(struct inode *inode, struct file *file,
        {
                struct cpia2_fh *fh = file->private_data;
                if(fh->prio != V4L2_PRIORITY_RECORD) {
-                       up(&cam->busy_lock);
+                       mutex_unlock(&cam->busy_lock);
                        return -EBUSY;
                }
                break;
@@ -1847,7 +1847,7 @@ static int cpia2_do_ioctl(struct inode *inode, struct file *file,
                break;
        }
 
-       up(&cam->busy_lock);
+       mutex_unlock(&cam->busy_lock);
        return retval;
 }
 
@@ -1924,14 +1924,15 @@ static void reset_camera_struct_v4l(struct camera_data *cam)
  * The v4l video device structure initialized for this device
  ***/
 static struct file_operations fops_template = {
-       .owner=      THIS_MODULE,
-       .open=       cpia2_open,
-       .release=    cpia2_close,
-       .read=       cpia2_v4l_read,
-       .poll=       cpia2_v4l_poll,
-       .ioctl=      cpia2_ioctl,
-       .llseek=     no_llseek,
-       .mmap=       cpia2_mmap,
+       .owner          = THIS_MODULE,
+       .open           = cpia2_open,
+       .release        = cpia2_close,
+       .read           = cpia2_v4l_read,
+       .poll           = cpia2_v4l_poll,
+       .ioctl          = cpia2_ioctl,
+       .llseek         = no_llseek,
+       .compat_ioctl   = v4l_compat_ioctl32,
+       .mmap           = cpia2_mmap,
 };
 
 static struct video_device cpia2_template = {