tree 8239614249620176fd93f79e8a5cc56e5056a1b2
parent e6db7f4d7c5005258b862a5ed1732756fccb6bfa
author Ville Syrjälä <ville.syrjala@linux.intel.com> 1541447164 +0200
committer Ville Syrjälä <ville.syrjala@linux.intel.com> 1541510246 +0200

drm/i915: Don't oops during modeset shutdown after lpe audio deinit

We deinit the lpe audio device before we call
drm_atomic_helper_shutdown(), which means the platform device
may already be gone when it comes time to shut down the crtc.
As we don't know when the last reference to the platform
device gets dropped by the audio driver we can't assume that
the device and its data are still around when turning off the
crtc. Mark the platform device as gone as soon as we do the
audio deinit.

Cc: stable@vger.kernel.org
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181105194604.6994-1-ville.syrjala@linux.intel.com
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>