drm/i915: Check for NULL atomic state in intel_crtc_disable_noatomic()
authorAnder Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Fri, 20 Jan 2017 14:28:45 +0000 (16:28 +0200)
committerAnder Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Mon, 23 Jan 2017 08:28:13 +0000 (10:28 +0200)
commit31bb2ef97ea9db343348f9b5ccaa9bb6f48fc655
tree54820a6ebe4ac28f7c2ab08bba4c7321f06d9b47
parent46a1bd289507dfcc428fb9daf65421ed6be6af8b
drm/i915: Check for NULL atomic state in intel_crtc_disable_noatomic()

In intel_crtc_disable_noatomic(), bail on a failure to allocate an
atomic state to avoid a NULL pointer dereference.

Fixes: 4a80655827af ("drm/i915: Pass atomic state to crtc enable/disable functions")
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: intel-gfx@lists.freedesktop.org
Cc: <stable@vger.kernel.org> # v4.9+
Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1484922525-6131-4-git-send-email-ander.conselvan.de.oliveira@intel.com
drivers/gpu/drm/i915/intel_display.c