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authorMike Snitzer <snitzer@redhat.com>2015-10-22 10:56:40 -0400
committerBen Hutchings <ben@decadent.org.uk>2015-11-17 15:54:45 +0000
commit12d1c67b7b482bea0503fb9e42e9d257498b5c32 (patch)
treeedbba7d62eec0a797184cfe5569f327c63c2c24e /drivers
parent11020754df47e783aa3908c2fbf33318b05b744e (diff)
dm btree: fix leak of bufio-backed block in btree_split_beneath error path
commit 4dcb8b57df3593dcb20481d9d6cf79d1dc1534be upstream. 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> Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'drivers')
-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 62f297a44dd5..29e423f6bfa5 100644
--- a/drivers/md/persistent-data/dm-btree.c
+++ b/drivers/md/persistent-data/dm-btree.c
@@ -503,7 +503,7 @@ 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;
}