From: Thierry Reding <treding@nvidia.com>
Date: Fri, 8 Nov 2013 11:30:37 +0000 (+0100)
Subject: drm/tegra: Make CRTC upcasting safer
X-Git-Tag: v3.13-rc4~39^2~5^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=37826519c4dca037bda5d008b4d687c2e6f8d405;p=pandora-kernel.git

drm/tegra: Make CRTC upcasting safer

When upcasting a NULL CRTC object, propagate the NULL pointer instead of
some invalid pointer. This allows subsequent code to check that the cast
object is valid.

Signed-off-by: Thierry Reding <treding@nvidia.com>
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