X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fsbus%2Fchar%2Fvfc_dev.c;h=1f6cb8ae2784cddaf76aa949033381b271126037;hb=5ab0854dd77a520abe7c3b9c7770972fd3e61e90;hp=9269f7fbd36364957f0cdc97a90357f4e987fd1f;hpb=dd9cd6d4351076c78bb8c0f9146d1904b481fdbb;p=linux-2.6

diff --git a/drivers/sbus/char/vfc_dev.c b/drivers/sbus/char/vfc_dev.c
index 9269f7fbd3..1f6cb8ae27 100644
--- a/drivers/sbus/char/vfc_dev.c
+++ b/drivers/sbus/char/vfc_dev.c
@@ -22,7 +22,9 @@
 #include <linux/fs.h>
 #include <linux/delay.h>
 #include <linux/spinlock.h>
+#include <linux/mutex.h>
 #include <linux/mm.h>
+#include <linux/smp_lock.h>
 
 #include <asm/openprom.h>
 #include <asm/oplib.h>
@@ -54,12 +56,12 @@ static unsigned char saa9051_init_array[VFC_SAA9051_NR] = {
 
 void vfc_lock_device(struct vfc_dev *dev)
 {
-	down(&dev->device_lock_sem);
+	mutex_lock(&dev->device_lock_mtx);
 }
 
 void vfc_unlock_device(struct vfc_dev *dev)
 {
-	up(&dev->device_lock_sem);
+	mutex_unlock(&dev->device_lock_mtx);
 }
 
 
@@ -133,7 +135,7 @@ int init_vfc_hw(struct vfc_dev *dev)
 int init_vfc_devstruct(struct vfc_dev *dev, int instance) 
 {
 	dev->instance=instance;
-	init_MUTEX(&dev->device_lock_sem);
+	mutex_init(&dev->device_lock_mtx);
 	dev->control_reg=0;
 	dev->busy=0;
 	return 0;
@@ -177,14 +179,17 @@ static int vfc_open(struct inode *inode, struct file *file)
 {
 	struct vfc_dev *dev;
 
+	lock_kernel();
 	spin_lock(&vfc_dev_lock);
 	dev = vfc_get_dev_ptr(iminor(inode));
 	if (dev == NULL) {
 		spin_unlock(&vfc_dev_lock);
+		unlock_kernel();
 		return -ENODEV;
 	}
 	if (dev->busy) {
 		spin_unlock(&vfc_dev_lock);
+		unlock_kernel();
 		return -EBUSY;
 	}
 
@@ -201,6 +206,7 @@ static int vfc_open(struct inode *inode, struct file *file)
 	vfc_captstat_reset(dev);
 	
 	vfc_unlock_device(dev);
+	unlock_kernel();
 	return 0;
 }