[DRM] Patch for Compositor Drm

[Christopher Michael]

 From acb79e4a5921525b35e07e48f7f903e42a08fb7c Mon Sep 17 00:00:00 2001
From: Chris Michael <cp.michael at samsung.com>
Date: Mon, 22 Apr 2013 15:22:48 +0100
Subject: [PATCH] Fix not checking return value of drmIoctl function call to
  map dumb buffer.

in drm_fb_create_dumb, the return value of the drmIoctl function call
to map the dumb buffer was never checked, thus the following "if
(ret)" check was invalid as it was checking the previous return value
from the above drmModeAddFB call.

Signed-off-by: Chris Michael <cp.michael at samsung.com>
---
  src/compositor-drm.c |    2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/compositor-drm.c b/src/compositor-drm.c
index da1ba79..13b9d79 100644
--- a/src/compositor-drm.c
+++ b/src/compositor-drm.c
@@ -255,7 +255,7 @@ drm_fb_create_dumb(struct drm_compositor *ec, 
unsigned width, unsigned height)

  	memset(&map_arg, 0, sizeof(map_arg));
  	map_arg.handle = fb->handle;
-	drmIoctl(fb->fd, DRM_IOCTL_MODE_MAP_DUMB, &map_arg);
+	ret = drmIoctl(fb->fd, DRM_IOCTL_MODE_MAP_DUMB, &map_arg);

  	if (ret)
  		goto err_add_fb;
-- 
1.7.9.5