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drm/amdgpu: take the mode_config mutex when handling hpds
Since we may modify display state. Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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@ -59,10 +59,12 @@ static void amdgpu_hotplug_work_func(struct work_struct *work)
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struct drm_mode_config *mode_config = &dev->mode_config;
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struct drm_connector *connector;
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mutex_lock(&mode_config->mutex);
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if (mode_config->num_connector) {
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list_for_each_entry(connector, &mode_config->connector_list, head)
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amdgpu_connector_hotplug(connector);
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}
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mutex_unlock(&mode_config->mutex);
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/* Just fire off a uevent and let userspace tell us what to do */
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drm_helper_hpd_irq_event(dev);
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}
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