1 files changed, 4 insertions, 1 deletions
diff --git a/block/cloop.c b/block/cloop.c
index 11f17c8489..d6597fcf78 100644
--- a/block/cloop.c
+++ b/block/cloop.c
@@ -72,7 +72,10 @@ static int cloop_open(BlockDriverState *bs, QDict *options, int flags,
         return -EINVAL;
     }
 
-    bdrv_set_read_only(bs, true);
+    ret = bdrv_set_read_only(bs, true, errp);
+    if (ret < 0) {
+        return ret;
+    }
 
     /* read header */
     ret = bdrv_pread(bs->file, 128, &s->block_size, 4);