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[intel] Fix BUG_ON trigger in irq masking if you did on/off with irqs disabled.

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This commit is contained in:
Eric Anholt 2008-06-10 23:10:33 -07:00
parent 2150da5d1a
commit 62a3be962f
1 changed files with 1 additions and 1 deletions
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2
shared-core/i915_irq.c
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@ -560,7 +560,7 @@ void i915_user_irq_on(drm_i915_private_t *dev_priv)
void i915_user_irq_off(drm_i915_private_t *dev_priv)
{
DRM_SPINLOCK(&dev_priv->user_irq_lock);
BUG_ON(dev_priv->user_irq_refcount <= 0);
BUG_ON(dev_priv->irq_enabled && dev_priv->user_irq_refcount <= 0);
if (dev_priv->irq_enabled && (--dev_priv->user_irq_refcount == 0)) {
dev_priv->irq_mask_reg |= I915_USER_INTERRUPT;
I915_WRITE(I915REG_INT_MASK_R, dev_priv->irq_mask_reg);