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ide: use mutex instead of ide_setting_sem semaphore in IDE driver

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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>

--
This commit is contained in:
Matthias Kaehlcke
2007-07-09 23:17:56 +02:00
committed by Bartlomiej Zolnierkiewicz
parent 1b9da32a28
commit f9383c4269
4 changed files with 29 additions and 28 deletions
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8
drivers/ide/ide-disk.c
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@@ -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;