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Patch "drm/radeon: take the mode_config mutex when dealing with hpds (v2)" has been added to the 3.10-stable tree

PATCH [email protected] 1 participant 1 message Jul 30, 2015

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This is a note to let you know that I've just added the patch titled

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

to the 3.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
drm-radeon-take-the-mode_config-mutex-when-dealing-with-hpds-v2.patch
and it can be found in the queue-3.10 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

Quoted 1 line

From 39fa10f7e21574a70cecf1fed0f9b36535aa68a0 Mon Sep 17 00:00:00 2001

From: Alex Deucher <[email protected]>
Date: Fri, 15 May 2015 11:48:52 -0400
Subject: drm/radeon: take the mode_config mutex when dealing with hpds (v2)

From: Alex Deucher <[email protected]>

commit 39fa10f7e21574a70cecf1fed0f9b36535aa68a0 upstream.

Since we are messing with state in the worker.

v2: drop the changes in the mst worker

---
 drivers/gpu/drm/radeon/radeon_irq_kms.c |    2 ++
 1 file changed, 2 insertions(+)
drivers/gpu/drm/radeon/radeon_irq_kms.c +2 -0
@@ -73,10 +73,12 @@ static void radeon_hotplug_work_func(str
 	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);
 }

Patches currently in stable-queue which might be from [email protected] are

queue-3.10/drm-radeon-take-the-mode_config-mutex-when-dealing-with-hpds-v2.patch queue-3.10/drm-radeon-don-t-flush-the-gart-tlb-if-rdev-gart.ptr-null.patch