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authorMike Snitzer <snitzer@redhat.com>2015-10-22 10:56:40 -0400
committerMike Snitzer <snitzer@redhat.com>2015-10-23 14:02:55 -0400
commit4dcb8b57df3593dcb20481d9d6cf79d1dc1534be (patch)
tree7dae30ad56516dc9b137f25484cc2ef91a7ff3fa
parent2871c69e025e8bc507651d5a9cf81a8a7da9d24b (diff)
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dm btree: fix leak of bufio-backed block in btree_split_beneath error path
btree_split_beneath()'s error path had an outstanding FIXME that speaks directly to the potential for _not_ cleaning up a previously allocated bufio-backed block. Fix this by releasing the previously allocated bufio block using unlock_block(). Reported-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Acked-by: Joe Thornber <thornber@redhat.com> Cc: stable@vger.kernel.org
-rw-r--r--drivers/md/persistent-data/dm-btree.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/md/persistent-data/dm-btree.c b/drivers/md/persistent-data/dm-btree.c
index b6cec258cc21..0e09aef43998 100644
--- a/drivers/md/persistent-data/dm-btree.c
+++ b/drivers/md/persistent-data/dm-btree.c
@@ -523,7 +523,7 @@ static int btree_split_beneath(struct shadow_spine *s, uint64_t key)
r = new_block(s->info, &right);
if (r < 0) {
- /* FIXME: put left */
+ unlock_block(s->info, left);
return r;
}