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>

2 files changed, 7 insertions, 7 deletions

diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index f5ce22c38f82..648aabd121cd 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -1025,7 +1025,7 @@ static int init_irq (ide_hwif_t *hwif)
         BUG_ON(irqs_disabled());        
         BUG_ON(hwif == NULL);
 
-        down(&ide_cfg_sem);
+        mutex_lock(&ide_cfg_mtx);
         hwif->hwgroup = NULL;
 #if MAX_HWIFS > 1
         /*
@@ -1154,7 +1154,7 @@ static int init_irq (ide_hwif_t *hwif)
                 printk(" (%sed with %s)",
                         hwif->sharing_irq ? "shar" : "serializ", match->name);
         printk("\n");
-        up(&ide_cfg_sem);
+        mutex_unlock(&ide_cfg_mtx);
         return 0;
 out_unlink:
         spin_lock_irq(&ide_lock);
@@ -1177,7 +1177,7 @@ out_unlink:
         }
         spin_unlock_irq(&ide_lock);
 out_up:
-        up(&ide_cfg_sem);
+        mutex_unlock(&ide_cfg_mtx);
         return 1;
 }
 
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);