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drm/i915: Call non-locking version of drm_kms_helper_poll_enable(), v2

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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>
This commit is contained in:
Egbert Eich 2015-09-23 16:13:01 +02:00 committed by Jani Nikula
parent 4ad640e99e
commit b94be97253
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/i915/intel_hotplug.c
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@ -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));
}