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| author | Egbert Eich <eich@suse.de> | 2015-09-23 16:13:01 +0200 |
|---|---|---|
| committer | Jani Nikula <jani.nikula@intel.com> | 2015-09-30 16:32:27 +0300 |
| commit | b94be972538f4523f09243af7c726158f0bfae33 (patch) | |
| tree | e27a5486c5fc54035fa6bb8733e412ad3ba193e2 | |
| parent | 4ad640e99e5e5514d623210bc937e665ffd8f43f (diff) | |
| download | op-kernel-dev-b94be972538f4523f09243af7c726158f0bfae33.zip op-kernel-dev-b94be972538f4523f09243af7c726158f0bfae33.tar.gz | |
drm/i915: Call non-locking version of drm_kms_helper_poll_enable(), v2
drm_kms_helper_poll_enable() is called from a context in
intel_hpd_irq_storm_disable() where the the mode_config mutex is
already locked.
When this function was converted to lock this mutex in
commit 8c4ccc4ab6f6 ("drm/probe-helper: Grab mode_config.mutex
in poll_init/enable") a deadlock occurred.
Call the newly implemented non-locking version of this function.
Changes since v1:
- use function name suffix '_locked' for the function that
is to be called from a locked context.
Signed-off-by: Egbert Eich <eich@suse.de>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
| -rw-r--r-- | drivers/gpu/drm/i915/intel_hotplug.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_hotplug.c b/drivers/gpu/drm/i915/intel_hotplug.c index 53c0173..b177857 100644 --- a/drivers/gpu/drm/i915/intel_hotplug.c +++ b/drivers/gpu/drm/i915/intel_hotplug.c @@ -180,7 +180,7 @@ static void intel_hpd_irq_storm_disable(struct drm_i915_private *dev_priv) /* Enable polling and queue hotplug re-enabling. */ if (hpd_disabled) { - drm_kms_helper_poll_enable(dev); + drm_kms_helper_poll_enable_locked(dev); mod_delayed_work(system_wq, &dev_priv->hotplug.reenable_work, msecs_to_jiffies(HPD_STORM_REENABLE_DELAY)); } |
