From e655d122a71332d0d26b5c0909eb395da31af0c0 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Mon, 19 Nov 2012 09:44:57 +0000
Subject: [PATCH] drm/crtc: Fix potential NULL pointer dereference

drm_property_create_blob() could return NULL in which case NULL pointer
dereference error (on connector->edid_blob_ptr) is possible. Return if
connector->edid_blob_ptr is NULL.

Fixes the following smatch error:
drivers/gpu/drm/drm_crtc.c:3186 drm_mode_connector_update_edid_property()
error: potential null dereference 'connector->edid_blob_ptr'.
(drm_property_create_blob returns null)

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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