| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.9 49/75] dm: fix double RCU unlock in dm_dax_zero_page_range() error path | Date | Thu, 10 Dec 2020 15:27:14 +0100 |
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From: Mike Snitzer <snitzer@redhat.com>
commit f05c4403db5bba881d4964e731f6da35be46aabd upstream.
Remove redundant dm_put_live_table() in dm_dax_zero_page_range() error path to fix sparse warning: drivers/md/dm.c:1208:9: warning: context imbalance in 'dm_dax_zero_page_range' - unexpected unlock
Fixes: cdf6cdcd3b99a ("dm,dax: Add dax zero_page_range operation") 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 @@ -1219,11 +1219,9 @@ static int dm_dax_zero_page_range(struct * ->zero_page_range() is mandatory dax operation. If we are * here, something is wrong. */ - dm_put_live_table(md, srcu_idx); goto out; } ret = ti->type->dax_zero_page_range(ti, pgoff, nr_pages); - out: dm_put_live_table(md, srcu_idx);
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