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Commit 88bf65ae authored by Kalyan Thota's avatar Kalyan Thota Committed by Shubhashree Dhar
Browse files

drm/msm/sde: avoid lock while dumping fence status 



while crtc_commit is in progress last_close can be triggered
which accquires mode config locks, hence avoid using lock while
dumping the fence status on connector when lock is already taken.

Change-Id: I4e2032a65b3483dd276a2c82f339016fc2f3a93f
Signed-off-by: default avatarKalyan Thota <kalyant@codeaurora.org>
Signed-off-by: default avatarShubhashree Dhar <dhar@codeaurora.org>
parent 19f6ab69

drivers/gpu/drm/msm/sde/sde_kms.c

+10 −0
Original line number Diff line number Diff line
@@ -1631,6 +1631,16 @@ void sde_kms_timeline_status(struct drm_device *dev) 
	drm_for_each_crtc(crtc, dev)

		sde_crtc_timeline_status(crtc);



	if (mutex_is_locked(&dev->mode_config.mutex)) {

		/*

		 *Probably locked from last close dumping status anyway

		 */

		SDE_ERROR("dumping conn_timeline without mode_config lock\n");

		drm_for_each_connector_iter(conn, &conn_iter)

			sde_conn_timeline_status(conn);

		return;

	}



	mutex_lock(&dev->mode_config.mutex);

	drm_connector_list_iter_begin(dev, &conn_iter);

	drm_for_each_connector_iter(conn, &conn_iter)