drm/i915: Fixup for 'Hold mode_config->mutex during hotplug'



drm_helper_hpd_irq_event queues another work proc to go and deliver
the user-space event, and that function also wants to hold the config
mutex, so we shouldn't hold the mutex across the
drm_helper_hpd_irq_event call.

Signed-off-by: Keith Packard <keithp@keithp.com>

parent e8519464

drivers/gpu/drm/i915/i915_irq.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -313,10 +313,10 @@ static void i915_hotplug_work_func(struct work_struct *work)
		if (encoder->hot_plug)
		encoder->hot_plug(encoder);

		mutex_unlock(&mode_config->mutex);

		/* Just fire off a uevent and let userspace tell us what to do */
		drm_helper_hpd_irq_event(dev);

		mutex_unlock(&mode_config->mutex);
		}

		static void i915_handle_rps_change(struct drm_device *dev)