From 40b0e7813325b08077b6f541b3989edb2d86d837 Mon Sep 17 00:00:00 2001
From: Li Qiang <liq3ea@gmail.com>
Date: Mon, 26 Dec 2016 21:23:42 -0500
Subject: [PATCH] renderer: fix a leak in resource attach

Just return if the resource has been attached a iov
to avoid memory leak.

Signed-off-by: Li Qiang <liq3ea@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 src/vrend_renderer.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/vrend_renderer.c b/src/vrend_renderer.c
index da7cbed..00b61eb 100644
--- a/src/vrend_renderer.c
+++ b/src/vrend_renderer.c
@@ -4031,6 +4031,9 @@ int vrend_renderer_resource_attach_iov(int res_handle, struct iovec *iov,
    if (!res)
       return EINVAL;
 
+   if (res->iov)
+      return 0;
+
    /* work out size and max resource size */
    res->iov = iov;
    res->num_iovs = num_iovs;