[Qemu-devel] [PULL 4/4] hw/net/xen_nic.c: Set 'netdev->mac' to NULL after free it

[Stefan Hajnoczi]

From: Chen Gang <address@hidden>

Since net_init() checks whether 'netdev->mac' is NULL, before alloc it;
net_release() also need set 'netdev->mac' to NULL after free it.

Signed-off-by: Chen Gang <address@hidden>
Signed-off-by: Stefan Hajnoczi <address@hidden>
---
 hw/net/xen_nic.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/hw/net/xen_nic.c b/hw/net/xen_nic.c
index 8eaa77b..19ecfc4 100644
--- a/hw/net/xen_nic.c
+++ b/hw/net/xen_nic.c
@@ -428,6 +428,7 @@ static int net_free(struct XenDevice *xendev)
         netdev->nic = NULL;
     }
     g_free(netdev->mac);
+    netdev->mac = NULL;
     return 0;
 }
 
-- 
2.1.0