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

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commit 39fa10f7e2 upstream.

Since we are messing with state in the worker.

v2: drop the changes in the mst worker

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
This commit is contained in:
Alex Deucher
2015-05-15 11:48:52 -04:00
committed by Ben Hutchings
parent f312564391
commit 7e8d1a43ae
1 changed files with 2 additions and 0 deletions
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2
drivers/gpu/drm/radeon/radeon_irq_kms.c
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@ -51,10 +51,12 @@ 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);
}