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| author | Alex Deucher <alexander.deucher@amd.com> | 2015-05-15 11:48:52 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-08-03 09:29:55 -0700 |
| commit | 43c171f107d21d82ad8240bf8337d7ca56e27e0e (patch) | |
| tree | 70f98113448ffb7afdfa00b20b66340cf9a21cda | |
| parent | 1f8ddc25483278711e736dc062e4417fa87675b7 (diff) | |
| download | lwn-43c171f107d21d82ad8240bf8337d7ca56e27e0e.tar.gz lwn-43c171f107d21d82ad8240bf8337d7ca56e27e0e.zip | |
drm/radeon: take the mode_config mutex when dealing with hpds (v2)
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>
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_irq_kms.c | 2 |
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 b3f0293ba0d8..f8b20e1c0820 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); } |