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 7f293a9247deb80bf81ad13ed570fca1615cfd39..9f4ac736a602f5d7f49d16088de6dec19e67b4b4 100644 (file)
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -524,7 +524,6 @@ out:
 
 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;
@@ -558,7 +557,6 @@ retry:
 }
 
 static void dm_unprepare_ioctl(struct mapped_device *md, int srcu_idx)
-       __releases(md->io_barrier)
 {
        dm_put_live_table(md, srcu_idx);
 }