diff options
| author | Max Reitz <mreitz@redhat.com> | 2013-09-25 16:37:19 +0200 |
|---|---|---|
| committer | Stefan Hajnoczi <stefanha@redhat.com> | 2013-10-07 13:23:19 +0200 |
| commit | e3b21ef9e016e6d91fd71e44af5e23fb359e18f9 (patch) | |
| tree | 755ceabcf5a4b5e2c75cbf708099dd35d73e37e0 | |
| parent | fda74f826baec78d685e5a87fd8a95bfb7bb2243 (diff) | |
qcow2: Free allocated L2 cluster on error
If an error occurs in l2_allocate, the allocated (but unused) L2 cluster
should be freed.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Benoit Canet <benoit@irqsave.net>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
| -rw-r--r-- | block/qcow2-cluster.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/block/qcow2-cluster.c b/block/qcow2-cluster.c index 2ed45f068d..0fd26bb4cc 100644 --- a/block/qcow2-cluster.c +++ b/block/qcow2-cluster.c @@ -273,6 +273,10 @@ fail: qcow2_cache_put(bs, s->l2_table_cache, (void**) table); } s->l1_table[l1_index] = old_l2_offset; + if (l2_offset > 0) { + qcow2_free_clusters(bs, l2_offset, s->l2_size * sizeof(uint64_t), + QCOW2_DISCARD_ALWAYS); + } return ret; } |