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, 6 insertions, 6 deletions

diff --git a/hw/core/qdev-properties.c b/hw/core/qdev-properties.c
index 3cb6faa..4c7a8a0 100644
--- a/hw/core/qdev-properties.c
+++ b/hw/core/qdev-properties.c
@@ -761,15 +761,15 @@ static void set_pci_devfn(Object *obj, Visitor *v, const char *name,
     if (!visit_type_str(v, name, &str, &local_err)) {
         error_free(local_err);
         local_err = NULL;
-        visit_type_int32(v, name, &value, &local_err);
-        if (local_err) {
-            error_propagate(errp, local_err);
-        } else if (value < -1 || value > 255) {
+        if (!visit_type_int32(v, name, &value, errp)) {
+            return;
+        }
+        if (value < -1 || value > 255) {
             error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
                        name ? name : "null", "pci_devfn");
-        } else {
-            *ptr = value;
+            return;
         }
+        *ptr = value;
         return;
     }