qapi: Use returned bool to check for failure, manual part

The previous commit used Coccinelle to convert from checking the Error
object to checking the return value.  Convert a few more manually.
Also tweak control flow in places to conform to the conventional "if
error bail out" pattern.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20200707160613.848843-20-armbru@redhat.com>

1 files changed, 3 insertions, 6 deletions

diff --git a/hw/mem/nvdimm.c b/hw/mem/nvdimm.c
index ec92ffd..1fa976c 100644
--- a/hw/mem/nvdimm.c
+++ b/hw/mem/nvdimm.c
@@ -85,21 +85,18 @@ static void nvdimm_set_uuid(Object *obj, Visitor *v, const char *name,
                                   void *opaque, Error **errp)
 {
     NVDIMMDevice *nvdimm = NVDIMM(obj);
-    Error *local_err = NULL;
     char *value;
 
-    if (!visit_type_str(v, name, &value, &local_err)) {
-        goto out;
+    if (!visit_type_str(v, name, &value, errp)) {
+        return;
     }
 
     if (qemu_uuid_parse(value, &nvdimm->uuid) != 0) {
         error_setg(errp, "Property '%s.%s' has invalid value",
                    object_get_typename(obj), name);
     }
-    g_free(value);
 
-out:
-    error_propagate(errp, local_err);
+    g_free(value);
 }