ide: use mutex instead of ide_setting_sem semaphore in IDE driver

The IDE driver uses a semaphore as mutex.
Use the mutex API instead of the (binary) semaphore.

Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

--

1 files changed, 4 insertions, 4 deletions

diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c
index dc2175c81f5e..b1304a7f3e0a 100644
--- a/drivers/ide/ide-disk.c
+++ b/drivers/ide/ide-disk.c
@@ -1190,11 +1190,11 @@ static int idedisk_ioctl(struct inode *inode, struct file *file,
         return generic_ide_ioctl(drive, file, bdev, cmd, arg);
 
 read_val:
-        down(&ide_setting_sem);
+        mutex_lock(&ide_setting_mtx);
         spin_lock_irqsave(&ide_lock, flags);
         err = *val;
         spin_unlock_irqrestore(&ide_lock, flags);
-        up(&ide_setting_sem);
+        mutex_unlock(&ide_setting_mtx);
         return err >= 0 ? put_user(err, (long __user *)arg) : err;
 
 set_val:
@@ -1204,9 +1204,9 @@ set_val:
                 if (!capable(CAP_SYS_ADMIN))
                         err = -EACCES;
                 else {
-                        down(&ide_setting_sem);
+                        mutex_lock(&ide_setting_mtx);
                         err = setfunc(drive, arg);
-                        up(&ide_setting_sem);
+                        mutex_unlock(&ide_setting_mtx);
                 }
         }
         return err;