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md: release allocated bitset sync_set

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Patch fixes kmemleak on md_stop() path used likely only by dm-raid wrapper.
Code of md is using  mddev_put() where both bitsets are released however this
freeing is not shared.

Also set NULL to bio_set and sync_set pointers just like mddev_put is
doing.

Signed-off-by: Zdenek Kabelac <[email protected]>
Signed-off-by: Shaohua Li <[email protected]>
This commit is contained in:
Zdenek Kabelac 2017-11-08 13:44:55 +01:00 • committed by Shaohua Li
commit 0202ce8a90
1 changed files with 7 additions and 1 deletions
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8
drivers/md/md.c
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@ -5852,8 +5852,14 @@ void md_stop(struct mddev *mddev)
* This is called from dm-raid
*/
__md_stop(mddev);
if (mddev->bio_set)
if (mddev->bio_set) {
bioset_free(mddev->bio_set);
mddev->bio_set = NULL;
}
if (mddev->sync_set) {
bioset_free(mddev->sync_set);
mddev->sync_set = NULL;
}
}
EXPORT_SYMBOL_GPL(md_stop);