ide: use mutex instead of ide_cfg_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.c b/drivers/ide/ide.c
index 3717a329b43b..14ac7c2049e9 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -169,7 +169,7 @@ static const u8 ide_hwif_to_major[] = { IDE0_MAJOR, IDE1_MAJOR,
 static int idebus_parameter;    /* holds the "idebus=" parameter */
 static int system_bus_speed;    /* holds what we think is VESA/PCI bus speed */
 
-DECLARE_MUTEX(ide_cfg_sem);
+DEFINE_MUTEX(ide_cfg_mtx);
  __cacheline_aligned_in_smp DEFINE_SPINLOCK(ide_lock);
 
 #ifdef CONFIG_IDEPCI_PCIBUS_ORDER
@@ -564,7 +564,7 @@ void ide_unregister(unsigned int index)
 {
         ide_drive_t *drive;
         ide_hwif_t *hwif, *g;
-        static ide_hwif_t tmp_hwif; /* protected by ide_cfg_sem */
+        static ide_hwif_t tmp_hwif; /* protected by ide_cfg_mtx */
         ide_hwgroup_t *hwgroup;
         int irq_count = 0, unit;
 
@@ -572,7 +572,7 @@ void ide_unregister(unsigned int index)
 
         BUG_ON(in_interrupt());
         BUG_ON(irqs_disabled());
-        down(&ide_cfg_sem);
+        mutex_lock(&ide_cfg_mtx);
         spin_lock_irq(&ide_lock);
         hwif = &ide_hwifs[index];
         if (!hwif->present)
@@ -679,7 +679,7 @@ void ide_unregister(unsigned int index)
 
 abort:
         spin_unlock_irq(&ide_lock);
-        up(&ide_cfg_sem);
+        mutex_unlock(&ide_cfg_mtx);
 }
 
 EXPORT_SYMBOL(ide_unregister);