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Commit 3ea87855 authored by Dave Airlie's avatar Dave Airlie
Browse files

drm/helper: lock all around force mode restore 



Since Daniel documented things with a sledge hammer, we got lots of
nice backtraces in suspend/resume operations, I've check the callers
of this and they all seems safe to me,

This fixes one set of warns I reported.

Reviewed-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent 53f1904b

drivers/gpu/drm/drm_crtc_helper.c

+2 −0
Original line number Diff line number Diff line
@@ -983,6 +983,7 @@ void drm_helper_resume_force_mode(struct drm_device *dev) 
	int encoder_dpms;

	bool ret;



	drm_modeset_lock_all(dev);

	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {



		if (!crtc->enabled)
@@ -1017,6 +1018,7 @@ void drm_helper_resume_force_mode(struct drm_device *dev) 


	/* disable the unused connectors while restoring the modesetting */

	__drm_helper_disable_unused_functions(dev);

	drm_modeset_unlock_all(dev);

}

EXPORT_SYMBOL(drm_helper_resume_force_mode);