Commit a9b054e8 authored May 02, 2013 by Daniel Vetter

drm: don't check modeset locks in panic handler

Since we know that locking is broken in that case and it's more
important to not flood the dmesg with random gunk.

Cc: Dave Airlie <airlied@gmail.com>
Cc: Borislav Petkov <bp@alien8.de>
References: http://lkml.kernel.org/r/20130502000206.GH15623@pd.tnic


Cc: stable@vger.kernel.org
Reported-and-tested-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

parent 51cea1f4

drivers/gpu/drm/drm_crtc.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -78,6 +78,10 @@ void drm_warn_on_modeset_not_all_locked(struct drm_device *dev)
		{
		struct drm_crtc *crtc;

		/* Locking is currently fubar in the panic handler. */
		if (oops_in_progress)
		return;

		list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
		WARN_ON(!mutex_is_locked(&crtc->mutex));