Commit 89f06138 authored by Mike Snitzer's avatar Mike Snitzer Committed by Kamal Mostafa

dm btree: fix leak of bufio-backed block in btree_split_beneath error path

commit 4dcb8b57 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: default avatarMikulas Patocka <mpatocka@redhat.com>
Signed-off-by: default avatarMike Snitzer <snitzer@redhat.com>
Acked-by: default avatarJoe Thornber <thornber@redhat.com>
Signed-off-by: default avatarKamal Mostafa <kamal@canonical.com>
parent 0d5a2d95
......@@ -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;
}
......
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