[Qemu-devel] [PATCH 3/3] vmstate registration: check return values

["Dr. David Alan Gilbert (git)" <dgilbert@redhat.com>]

From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>

Check qdev's call to vmstate_register_with_alias_id; that gets
most of the common uses; there's hundreds of calls via vmstate_register
which could get fixed over time.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
---
 hw/core/qdev.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/hw/core/qdev.c b/hw/core/qdev.c
index ea97b15..df633d0 100644
--- a/hw/core/qdev.c
+++ b/hw/core/qdev.c
@@ -933,10 +933,12 @@ static void device_set_realized(Object *obj, bool value, Error **errp)
         }
 
         if (qdev_get_vmsd(dev)) {
-            vmstate_register_with_alias_id(dev, -1, qdev_get_vmsd(dev), dev,
+            if (vmstate_register_with_alias_id(dev, -1, qdev_get_vmsd(dev), dev,
                                            dev->instance_id_alias,
                                            dev->alias_required_for_version,
-                                           NULL);
+                                           &local_err) < 0) {
+                goto post_realize_fail;
+            }
         }
 
         QLIST_FOREACH(bus, &dev->child_bus, sibling) {
-- 
2.9.3