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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>
hifive-unleashed-5.1
Mike Snitzer 2012-07-03 12:55:33 +01:00 committed by Alasdair G Kergon
parent 0d200aefd4
commit 25d7cd6faa
1 changed files with 3 additions and 0 deletions
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3
drivers/md/persistent-data/dm-transaction-manager.c
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@ -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);