[PATCH 5.4 31/54] dm: remove invalid sparse __acquires and __releases annotations

Greg Kroah-Hartman
2020-12-10T14:41:59Z

From: Mike Snitzer <snitzer@redhat.com>

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>

---
drivers/md/dm.c | 2 --
1 file changed, 2 deletions(-)

--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -495,7 +495,6 @@ 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;
@@ -529,7 +528,6 @@ retry:
}

static void dm_unprepare_ioctl(struct mapped_device *md, int srcu_idx)
- __releases(md->io_barrier)
{
dm_put_live_table(md, srcu_idx);
}