From: Junwei Zhang <Jerry.Zhang@amd.com>
Date: Wed, 26 Aug 2015 01:34:59 +0000 (+0800)
Subject: drm/amdgpu: adjust the judgement of removing fence callback
X-Git-Tag: omap-for-v4.3/fixes-rc1~89^2~14^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=113cd9dacbad4906e1c8db09233b9fdcb002f80d;p=pandora-kernel.git

drm/amdgpu: adjust the judgement of removing fence callback

The fence in the array may be skipped if wait_all is false,
thus the related callback is not initialized with list head.
So removing this kind callback will cause NULL pointer reference.

Signed-off-by: Junwei Zhang <Jerry.Zhang@amd.com>
Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com>
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