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authorVille Syrjälä <ville.syrjala@linux.intel.com>2013-05-22 11:36:40 +0300
committerDaniel Vetter <daniel.vetter@ffwll.ch>2013-05-23 12:51:30 +0200
commitdf0a67979543e716d411eb11406848dcb50abd0a (patch)
treee226f372e98c5673721153afafc50dcd6423d0d9 /drivers/gpu/drm/i915/intel_panel.c
parenta36689cb771f06819c3fa8139c3d3716dfdf6d53 (diff)
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 8ba2d18520ce380cf572e9902d9b3b91ece6c2c0 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>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_panel.c')
-rw-r--r--drivers/gpu/drm/i915/intel_panel.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c
index 56f17b2382f..80bea1d3209 100644
--- a/drivers/gpu/drm/i915/intel_panel.c
+++ b/drivers/gpu/drm/i915/intel_panel.c
@@ -332,7 +332,7 @@ static u32 i915_read_blc_pwm_ctl(struct drm_device *dev)
struct drm_i915_private *dev_priv = dev->dev_private;
u32 val;
- WARN_ON(!spin_is_locked(&dev_priv->backlight.lock));
+ WARN_ON_SMP(!spin_is_locked(&dev_priv->backlight.lock));
/* Restore the CTL value if it lost, e.g. GPU reset */