Commit b4ab8764 authored Jun 28, 2018 by Steve Cohen

drm/msm: retry disabling modes on -ERESTARTSYS during lastclose



Retry the msm_disable_all_modes_commit if it fails with -ERESTARTSYS.
This error would normally propagate up causing the upper layers to
re-trigger the call with the same arguments, but since lastclose
returns a void type the error is getting lost.  Therefore detect
-ERESTARTSYS and retry the commit ourselves.

Change-Id: Id6d1933965f5fdca0ac823ae1873a206fef82228
Signed-off-by: Steve Cohen <cohens@codeaurora.org>

parent 4126e402

drivers/gpu/drm/msm/msm_drv.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -973,7 +973,7 @@ static int msm_disable_all_modes(

		for (i = 0; i < TEARDOWN_DEADLOCK_RETRY_MAX; i++) {
		ret = msm_disable_all_modes_commit(dev, state);
		if (ret != -EDEADLK)
		if (ret != -EDEADLK \|\| ret != -ERESTARTSYS)
		break;
		drm_atomic_state_clear(state);
		drm_modeset_backoff(ctx);