migration: disallow migrate_add_blocker during migration

[mirror_qemu.git] / block / vmdk.c

diff --git a/block/vmdk.c b/block/vmdk.c
index a11c27a1c49a33711c9e9ba7a37d007cb18f1091..7750212969feaa512385777c5101e9d93d15df47 100644 (file)
--- a/block/vmdk.c
+++ b/block/vmdk.c
@@ -941,6 +941,7 @@ static int vmdk_open(BlockDriverState *bs, QDict *options, int flags,
     int ret;
     BDRVVmdkState *s = bs->opaque;
     uint32_t magic;
+    Error *local_err = NULL;
 
     buf = vmdk_read_desc(bs->file, 0, errp);
     if (!buf) {
@@ -976,7 +977,13 @@ static int vmdk_open(BlockDriverState *bs, QDict *options, int flags,
     error_setg(&s->migration_blocker, "The vmdk format used by node '%s' "
                "does not support live migration",
                bdrv_get_device_or_node_name(bs));
-    migrate_add_blocker(s->migration_blocker);
+    ret = migrate_add_blocker(s->migration_blocker, &local_err);
+    if (local_err) {
+        error_propagate(errp, local_err);
+        error_free(s->migration_blocker);
+        goto fail;
+    }
+
     g_free(buf);
     return 0;