From: Ben Widawsky <benjamin.widawsky@intel.com>
Date: Fri, 6 Dec 2013 22:10:50 +0000 (-0800)
Subject: drm/i915: Takedown drm_mm on failed gtt setup
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=c39538a88dcfdbb905e60f9168d6d49460cabe57;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git

drm/i915: Takedown drm_mm on failed gtt setup

This was found by code inspection. If the GTT setup fails then we are
left without properly tearing down the drm_mm.

Hopefully this never happens.

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 360b68fbef6d..11141590eda0 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -4508,6 +4508,7 @@ int i915_gem_init(struct drm_device *dev)
 	mutex_unlock(&dev->struct_mutex);
 	if (ret) {
 		i915_gem_cleanup_aliasing_ppgtt(dev);
+		drm_mm_takedown(&dev_priv->gtt.base.mm);
 		return ret;
 	}