| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.1 138/267] drm/radeon: take the mode_config mutex when dealing with hpds (v2) | Date | Fri, 31 Jul 2015 12:39:49 -0700 |
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4.1-stable review patch. If anyone has any objections, please let me know.
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From: Alex Deucher <alexander.deucher@amd.com>
commit 39fa10f7e21574a70cecf1fed0f9b36535aa68a0 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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/gpu/drm/radeon/radeon_irq_kms.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/drivers/gpu/drm/radeon/radeon_irq_kms.c +++ b/drivers/gpu/drm/radeon/radeon_irq_kms.c @@ -79,10 +79,12 @@ 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); }
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