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Commit c966a8dd authored by Alex Deucher's avatar Alex Deucher Committed by Sasha Levin
Browse files

drm/radeon: take the mode_config mutex when dealing with hpds (v2) 



[ Upstream commit 39fa10f7e21574a70cecf1fed0f9b36535aa68a0 ]

Since we are messing with state in the worker.

v2: drop the changes in the mst worker

Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: default avatarSasha Levin <sasha.levin@oracle.com>
parent 37469346

drivers/gpu/drm/radeon/radeon_irq_kms.c

+2 −0
Original line number Diff line number Diff line
@@ -79,10 +79,12 @@ static void radeon_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)

			radeon_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);

}