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dm: fix double RCU unlock in dm_dax_zero_page_range() error path 

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: cdf6cdcd3b ("dm,dax: Add dax zero_page_range operation")
Cc: stable@vger.kernel.org
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
This commit is contained in:
Mike Snitzer 2020-12-04 15:19:27 -05:00
parent 3ee16db390
commit f05c4403db
1 changed files with 0 additions and 2 deletions
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2
drivers/md/dm.c
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@ -1201,11 +1201,9 @@ static int dm_dax_zero_page_range(struct dax_device *dax_dev, pgoff_t pgoff,
* ->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);