drm/i915: Fix WARN_ON() on UP machines
WARN_ON(!spin_is_locked()) is not a good idea on a UP system w/o
spinlock debugging. Use WARN_ON_SMP() instead.
This check has been added in
commit 8ba2d18520
Author: Jani Nikula <jani.nikula@intel.com>
Date: Fri Apr 12 15:18:37 2013 +0300
drm/i915: protect backlight registers and data with a spinlock
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
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@ -332,7 +332,7 @@ static u32 i915_read_blc_pwm_ctl(struct drm_device *dev)
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struct drm_i915_private *dev_priv = dev->dev_private;
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struct drm_i915_private *dev_priv = dev->dev_private;
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u32 val;
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u32 val;
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WARN_ON(!spin_is_locked(&dev_priv->backlight.lock));
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WARN_ON_SMP(!spin_is_locked(&dev_priv->backlight.lock));
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/* Restore the CTL value if it lost, e.g. GPU reset */
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/* Restore the CTL value if it lost, e.g. GPU reset */
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