From 03c961ba6d04786c8a7e7df118538a01f442e90b Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Tue, 3 Sep 2013 08:50:39 +0200
Subject: [PATCH] gpu: host1x: Check for valid host1x pointer

Under rare circumstances it can happen that the host1x driver's .probe()
doesn't finish properly, in which case the device's driver-specific data
will not be set. Instead of crashing in such a situation, propagate the
error to callers of the host1x_get_drm_data() function.

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