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, 6 insertions, 6 deletions

diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index 14ac7c2049e9..574414689253 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -817,9 +817,9 @@ EXPORT_SYMBOL(ide_register_hw);
  *      Locks for IDE setting functionality
  */
 
-DECLARE_MUTEX(ide_setting_sem);
+DEFINE_MUTEX(ide_setting_mtx);
 
-EXPORT_SYMBOL_GPL(ide_setting_sem);
+EXPORT_SYMBOL_GPL(ide_setting_mtx);
 
 /**
  *      ide_spin_wait_hwgroup   -       wait for group
@@ -1192,11 +1192,11 @@ int generic_ide_ioctl(ide_drive_t *drive, struct file *file, struct block_device
         }
 
 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:
@@ -1206,9 +1206,9 @@ 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;