Add migration capabilities

[qemu.git] / error.c

diff --git a/error.c b/error.c
index d3455ab9e6dbb214d8e86ced200255540e5e2acc..58f55a012e76fb111a4b9bddad55b22d1046c211 100644 (file)
--- a/error.c
+++ b/error.c
@@ -32,6 +32,7 @@ void error_set(Error **errp, const char *fmt, ...)
     if (errp == NULL) {
         return;
     }
+    assert(*errp == NULL);
 
     err = g_malloc0(sizeof(*err));
 
@@ -93,7 +94,7 @@ QDict *error_get_data(Error *err)
 void error_set_field(Error *err, const char *field, const char *value)
 {
     QDict *dict = qdict_get_qdict(err->obj, "data");
-    return qdict_put(dict, field, qstring_from_str(value));
+    qdict_put(dict, field, qstring_from_str(value));
 }
 
 void error_free(Error *err)
@@ -132,7 +133,7 @@ bool error_is_type(Error *err, const char *fmt)
 
 void error_propagate(Error **dst_err, Error *local_err)
 {
-    if (dst_err) {
+    if (dst_err && !*dst_err) {
         *dst_err = local_err;
     } else if (local_err) {
         error_free(local_err);