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| author | Mike Snitzer <snitzer@redhat.com> | 2012-07-03 12:55:33 +0100 |
|---|---|---|
| committer | Alasdair G Kergon <agk@redhat.com> | 2012-07-03 12:55:33 +0100 |
| commit | 25d7cd6faa7ae6ed2565617c3ee2500ccb8a9f7f (patch) | |
| tree | b25b921b508994e51c7d2f03fe9ca1a055a59e77 | |
| parent | 0d200aefd4ac51787b6b80de1bb7ce93bccd59f6 (diff) | |
| download | lwn-25d7cd6faa7ae6ed2565617c3ee2500ccb8a9f7f.tar.gz lwn-25d7cd6faa7ae6ed2565617c3ee2500ccb8a9f7f.zip | |
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>
| -rw-r--r-- | drivers/md/persistent-data/dm-transaction-manager.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/md/persistent-data/dm-transaction-manager.c b/drivers/md/persistent-data/dm-transaction-manager.c index 400fe144c0cd..02bf78e9d10d 100644 --- a/drivers/md/persistent-data/dm-transaction-manager.c +++ b/drivers/md/persistent-data/dm-transaction-manager.c @@ -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); |