From: Oded Gabbay <oded.gabbay@amd.com>
Date: Mon, 12 Jan 2015 20:34:21 +0000 (+0200)
Subject: drm/amdkfd: Don't BUG on freeing GART sub-allocation
X-Git-Tag: fixes-v4.0-rc1~91^2~38^2~9
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9216ed294053be68a673754a0f8da88aa7fb7941;p=pandora-kernel.git

drm/amdkfd: Don't BUG on freeing GART sub-allocation

Instead of creating a BUG if trying to free a NULL GART sub-allocation object,
just return 0 (success).

This is done to mirror behavior of kfree.

Signed-off-by: Oded Gabbay <oded.gabbay@amd.com>
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