From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Mon, 5 Nov 2012 22:25:07 +0000 (+0000)
Subject: drm/i915: Clear unused fields of mode for framebuffer creation
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=0fed39bd1d85bfd0d454cb7ba2aedab2f15141d5;p=openwrt%2Fstaging%2Fblogic.git

drm/i915: Clear unused fields of mode for framebuffer creation

With the stricter checks introduced in
commit ac911edae5960d7dccd9883f5fa5d25b591520de
Author: Ville Syrjälä <ville.syrjala@linux.intel.com>
Date:   Wed Oct 31 17:50:19 2012 +0200

    drm/i915: Check the framebuffer offset

(and friends), it became especially prudent to make sure that the
additional fields inside the mode were cleared before attempting to
create a framebuffer. In particular, the fb created for load detection
failed to do so and hence failed.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index eeab3ae780cc..029e008979b6 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -6470,7 +6470,7 @@ intel_framebuffer_create_for_mode(struct drm_device *dev,
 				  int depth, int bpp)
 {
 	struct drm_i915_gem_object *obj;
-	struct drm_mode_fb_cmd2 mode_cmd;
+	struct drm_mode_fb_cmd2 mode_cmd = { 0 };
 
 	obj = i915_gem_alloc_object(dev,
 				    intel_framebuffer_size_for_mode(mode, bpp));