| Message ID | 1438151276-1719-1-git-send-email-daniel.vetter@ffwll.ch (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index c91c18b2b1d4..a8e5ca79aad1 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -5273,9 +5273,11 @@ void drm_mode_config_reset(struct drm_device *dev) if (encoder->funcs->reset) encoder->funcs->reset(encoder); + mutex_lock(dev->mode_config.mutex); drm_for_each_connector(connector, dev) if (connector->funcs->reset) connector->funcs->reset(connector); + mutex_unlock(dev->mode_config.mutex); } EXPORT_SYMBOL(drm_mode_config_reset);
With commit 7a3f3d6667f5f9ffd1517f6b21d64bbf5312042c Author: Daniel Vetter <daniel.vetter@ffwll.ch> Date: Thu Jul 9 23:44:28 2015 +0200 drm: Check locking in drm_for_each_connector we started checking the locking in drm_for_each_connector but somehow I totally missed drm_mode_config_reset. There's no problem there since this function should only be called in single-threaded contexts (driver load or resume), so just wrap the loop with the right lock. Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reported-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> --- drivers/gpu/drm/drm_crtc.c | 2 ++ 1 file changed, 2 insertions(+)