diff options
| author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2013-05-02 09:43:05 +0200 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2013-05-02 22:44:16 +0200 |
| commit | a9b054e8ab06504c2afa0e307ee78d3778993a1d (patch) | |
| tree | 1e670808b70033b50425f8100663c135b3b5d83a /drivers/gpu | |
| parent | 51cea1f469ad473c8d8b7d4a227640b8c02bf167 (diff) | |
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')
| -rw-r--r-- | drivers/gpu/drm/drm_crtc.c | 4 |
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)); |