From: Gonglei (Arei) <arei.gonglei@huawei.com>
Date: Mon, 28 Jul 2014 06:03:45 +0000 (+0000)
Subject: xen_disk:  fix possible null-ptr dereference
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=8cced121436a3298e5866dbfaec91cd475ad59cf;p=qemu.git

xen_disk:  fix possible null-ptr dereference

Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
---

diff --git a/hw/block/xen_disk.c b/hw/block/xen_disk.c
index aed5b5b3e9..a221d0bfca 100644
--- a/hw/block/xen_disk.c
+++ b/hw/block/xen_disk.c
@@ -589,6 +589,7 @@ static int blk_send_response_one(struct ioreq *ioreq)
         break;
     default:
         dst = NULL;
+        return 0;
     }
     memcpy(dst, &resp, sizeof(resp));
     blkdev->rings.common.rsp_prod_pvt++;