Commit 0202ce8a authored Nov 08, 2017 by Zdenek Kabelac Committed by Shaohua Li Nov 10, 2017

md: release allocated bitset sync_set



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 <zkabelac@redhat.com>
Signed-off-by: Shaohua Li <shli@fb.com>

parent 97f0eb9f

drivers/md/md.c

+7 −1

Original line number	Diff line number	Diff line
		@@ -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);

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