qcow2: don't leak buffer for unexpected qcow_version in header

Signed-off-by: Jim Meyering <meyering@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

diff --git a/block/qcow2.c b/block/qcow2.c
index 655799c..c2e49cd 100644 (file)
--- a/block/qcow2.c
+++ b/block/qcow2.c
@@ -919,7 +919,8 @@ int qcow2_update_header(BlockDriverState *bs)
         ret = sizeof(*header);
         break;
     default:
-        return -EINVAL;
+        ret = -EINVAL;
+        goto fail;
     }
 
     buf += ret;