[Qemu-devel] [PATCH 03/10] qapi: fix memory leak on error

[Paolo Bonzini <pbonzini@redhat.com>]

QmpInputVisitor would leak the malloced struct if the stack was
overflowed.  This can be easily fixed using error_propagate.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 qapi/qmp-input-visitor.c |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/qapi/qmp-input-visitor.c b/qapi/qmp-input-visitor.c
index b4013cc..ef9288f 100644
--- a/qapi/qmp-input-visitor.c
+++ b/qapi/qmp-input-visitor.c
@@ -86,6 +86,7 @@ static void qmp_input_start_struct(Visitor *v, void **obj, const char *kind,
 {
     QmpInputVisitor *qiv = to_qiv(v);
     const QObject *qobj = qmp_input_get_object(qiv, name);
+    Error *err = NULL;
 
     if (!qobj || qobject_type(qobj) != QTYPE_QDICT) {
         error_set(errp, QERR_INVALID_PARAMETER_TYPE, name ? name : "null",
@@ -93,8 +94,9 @@ static void qmp_input_start_struct(Visitor *v, void **obj, const char *kind,
         return;
     }
 
-    qmp_input_push(qiv, qobj, errp);
-    if (error_is_set(errp)) {
+    qmp_input_push(qiv, qobj, &err);
+    if (err) {
+        error_propagate(errp, err);
         return;
     }
 
-- 
1.7.9.1