[PATCH 1/6] qdev: make release_string() idempotent

[marcandre . lureau]

From: Marc-André Lureau <marcandre.lur...@redhat.com>

So it can eventually be called multiple times safely.

Signed-off-by: Marc-André Lureau <marcandre.lur...@redhat.com>
---
 hw/core/qdev-properties.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/hw/core/qdev-properties.c b/hw/core/qdev-properties.c
index 147b3ffd16..bad111833c 100644
--- a/hw/core/qdev-properties.c
+++ b/hw/core/qdev-properties.c
@@ -484,7 +484,8 @@ const PropertyInfo qdev_prop_usize = {
 static void release_string(Object *obj, const char *name, void *opaque)
 {
     const Property *prop = opaque;
-    g_free(*(char **)object_field_prop_ptr(obj, prop));
+
+    g_clear_pointer((char **)object_field_prop_ptr(obj, prop), g_free);
 }
 
 static void get_string(Object *obj, Visitor *v, const char *name,
-- 
2.49.0