ide: IDE settings don't need an ide_lock held

IDE settings are protected by ide_setting_mtx mutex so there is
no need to hold ide_lock in ide_setting_ioctl(), ide_read_setting()
and ide_proc_unregister_driver().

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 0 insertions, 3 deletions

diff --git a/drivers/ide/ide-ioctls.c b/drivers/ide/ide-ioctls.c
index fcde16bb53a7..f9034765aa18 100644
--- a/drivers/ide/ide-ioctls.c
+++ b/drivers/ide/ide-ioctls.c
@@ -19,7 +19,6 @@ int ide_setting_ioctl(ide_drive_t *drive, struct block_device *bdev,
                       const struct ide_ioctl_devset *s)
 {
         const struct ide_devset *ds;
-        unsigned long flags;
         int err = -EOPNOTSUPP;
 
         for (; (ds = s->setting); s++) {
@@ -33,9 +32,7 @@ int ide_setting_ioctl(ide_drive_t *drive, struct block_device *bdev,
 
 read_val:
         mutex_lock(&ide_setting_mtx);
-        spin_lock_irqsave(&ide_lock, flags);
         err = ds->get(drive);
-        spin_unlock_irqrestore(&ide_lock, flags);
         mutex_unlock(&ide_setting_mtx);
         return err >= 0 ? put_user(err, (long __user *)arg) : err;