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authorAlex Deucher <alexander.deucher@amd.com>2015-05-15 18:48:52 +0300
committerAlex Deucher <alexander.deucher@amd.com>2015-05-26 17:31:26 +0300
commit39fa10f7e21574a70cecf1fed0f9b36535aa68a0 (patch)
tree03472799ba2d2aa7539042b4a781108e8eae8be2 /drivers/gpu/drm/radeon
parent0c3a88407ef2be8bb7c302c298d6ff58ebde4a43 (diff)
downloadlinux-39fa10f7e21574a70cecf1fed0f9b36535aa68a0.tar.xz
drm/radeon: take the mode_config mutex when dealing with hpds (v2)
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> Cc: stable@vger.kernel.org
Diffstat (limited to 'drivers/gpu/drm/radeon')
-rw-r--r--drivers/gpu/drm/radeon/radeon_irq_kms.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_irq_kms.c b/drivers/gpu/drm/radeon/radeon_irq_kms.c
index 7162c935371c..f682e5351252 100644
--- 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(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);
}