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authorDaniel Vetter <daniel.vetter@ffwll.ch>2013-05-02 11:43:05 +0400
committerDaniel Vetter <daniel.vetter@ffwll.ch>2013-05-03 00:44:16 +0400
commita9b054e8ab06504c2afa0e307ee78d3778993a1d (patch)
tree1e670808b70033b50425f8100663c135b3b5d83a /drivers/gpu/drm/drm_crtc.c
parent51cea1f469ad473c8d8b7d4a227640b8c02bf167 (diff)
downloadlinux-a9b054e8ab06504c2afa0e307ee78d3778993a1d.tar.xz
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>
Diffstat (limited to 'drivers/gpu/drm/drm_crtc.c')
-rw-r--r--drivers/gpu/drm/drm_crtc.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index 792c3e3795ca..3be0802c6797 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));