Commit 25d7cd6f authored Jul 03, 2012 by Mike Snitzer Committed by Alasdair G Kergon Jul 03, 2012

dm persistent data: fix shadow_info_leak on dm_tm_destroy



Cleanup the shadow table before destroying the transaction manager.

Reference: leak was identified with kmemleak when running
test_discard_random_sectors in the thinp-test-suite.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Alasdair G Kergon <agk@redhat.com>

parent 0d200aef

drivers/md/persistent-data/dm-transaction-manager.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -138,6 +138,9 @@ EXPORT_SYMBOL_GPL(dm_tm_create_non_blocking_clone);

		void dm_tm_destroy(struct dm_transaction_manager *tm)
		{
		if (!tm->is_clone)
		wipe_shadow_table(tm);

		kfree(tm);
		}
		EXPORT_SYMBOL_GPL(dm_tm_destroy);