From: Nick Hoath <nicholas.hoath@intel.com>
Date: Thu, 29 Jan 2015 16:55:07 +0000 (+0000)
Subject: drm/i915: Fix a use-after-free in intel_execlists_retire_requests
X-Git-Tag: omap-for-v4.1/prcm-dts-mfd-syscon-fix~75^2~8^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f82107950e9bda3779610e37bdfdccae6fc16f87;p=pandora-kernel.git

drm/i915: Fix a use-after-free in intel_execlists_retire_requests

Remove request from list before unreferencing it, in case it's actually
the only reference. (Found by Tvrtko Ursulin)

This issue has been most likely introduced in

commit 6d3d8274bc45de4babb62d64562d92af984dd238
Author: Nick Hoath <nicholas.hoath@intel.com>
Date:   Thu Jan 15 13:10:39 2015 +0000

    drm/i915: Subsume intel_ctx_submit_request in to drm_i915_gem_request

Signed-off-by: Nick Hoath <nicholas.hoath@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---

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