dm: remove invalid sparse __acquires and __releases annotations

commit bde3808bc8c2741ad3d804f84720409aee0c2972 upstream.

Fixes sparse warnings:
drivers/md/dm.c:508:12: warning: context imbalance in 'dm_prepare_ioctl' - wrong count at exit
drivers/md/dm.c:543:13: warning: context imbalance in 'dm_unprepare_ioctl' - wrong count at exit

Fixes: 971888c46993f ("dm: hold DM table for duration of ioctl rather than use blkdev_get")
Cc: stable@vger.kernel.org
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 874bd542a7445c3d8486e4194c28d6b1226dc2a3..6c755eb0263fbde17af99d8f0a07d25a9f7074c8 100644 (file)
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -462,7 +462,6 @@ static int dm_blk_getgeo(struct block_device *bdev, struct hd_geometry *geo)
 
 static int dm_prepare_ioctl(struct mapped_device *md, int *srcu_idx,
                            struct block_device **bdev)
-       __acquires(md->io_barrier)
 {
        struct dm_target *tgt;
        struct dm_table *map;
@@ -496,7 +495,6 @@ retry:
 }
 
 static void dm_unprepare_ioctl(struct mapped_device *md, int srcu_idx)
-       __releases(md->io_barrier)
 {
        dm_put_live_table(md, srcu_idx);
 }