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Commit 9e14c65c authored by Alex Deucher's avatar Alex Deucher
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drm/amdgpu: take the mode_config mutex when handling hpds 



Since we may modify display state.

Reviewed-by: default avatarChristian König <christian.koenig@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent d94aed5a

drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c

+2 −0
Original line number Diff line number Diff line
@@ -59,10 +59,12 @@ static void amdgpu_hotplug_work_func(struct work_struct *work) 
	struct drm_mode_config *mode_config = &dev->mode_config;

	struct drm_connector *connector;



	mutex_lock(&mode_config->mutex);

	if (mode_config->num_connector) {

		list_for_each_entry(connector, &mode_config->connector_list, head)

			amdgpu_connector_hotplug(connector);

	}

	mutex_unlock(&mode_config->mutex);

	/* Just fire off a uevent and let userspace tell us what to do */

	drm_helper_hpd_irq_event(dev);

}