commit: a9b054e8ab06504c2afa0e307ee78d3778993a1d From: Daniel Vetter <daniel.vetter@xxxxxxxx> Date: Thu, 2 May 2013 09:43:05 +0200 Subject: 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@xxxxxxxxx> Cc: Borislav Petkov <bp@xxxxxxxxx> References: http://lkml.kernel.org/r/20130502000206.GH15623@xxxxxxx Cc: stable@xxxxxxxxxxxxxxx Reported-and-tested-by: Borislav Petkov <bp@xxxxxxx> Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxx> --- drivers/gpu/drm/drm_crtc.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index 792c3e3..3be0802 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -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)); -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html