[SPARC] Videopix Frame Grabber: Convert device_lock_sem to mutex

Videopix Frame Grabber: Convert the semaphore device_lock_sem to the
mutex API

Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 4 insertions, 3 deletions

diff --git a/drivers/sbus/char/vfc.h b/drivers/sbus/char/vfc.h
index 63941a259b92..f1aa1389ea4a 100644
--- a/drivers/sbus/char/vfc.h
+++ b/drivers/sbus/char/vfc.h
@@ -126,7 +126,7 @@ struct vfc_dev {
         volatile struct vfc_regs __iomem *regs;
         struct vfc_regs *phys_regs;
         unsigned int control_reg;
-        struct semaphore device_lock_sem;
+        struct mutex device_lock_mtx;
         int instance;
         int busy;
         unsigned long which_io;
diff --git a/drivers/sbus/char/vfc_dev.c b/drivers/sbus/char/vfc_dev.c
index 9269f7fbd363..e7a1642b2aa4 100644
--- a/drivers/sbus/char/vfc_dev.c
+++ b/drivers/sbus/char/vfc_dev.c
@@ -22,6 +22,7 @@
 #include <linux/fs.h>
 #include <linux/delay.h>
 #include <linux/spinlock.h>
+#include <linux/mutex.h>
 #include <linux/mm.h>
 
 #include <asm/openprom.h>
@@ -54,12 +55,12 @@ 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);
 }