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drm/i915: reduce indent in i9xx_hpd_irq_handler 

Bail out early if nothing to do. No functional changes.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Jani Nikula 2015-05-27 15:03:39 +03:00 committed by Daniel Vetter
parent b1b38278e1
commit 0d2e42970c
1 changed files with 18 additions and 17 deletions
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5
drivers/gpu/drm/i915/i915_irq.c
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@ -1756,7 +1756,9 @@ static void i9xx_hpd_irq_handler(struct drm_device *dev)
struct drm_i915_private *dev_priv = dev->dev_private;
u32 hotplug_status = I915_READ(PORT_HOTPLUG_STAT);
if (hotplug_status) {
if (!hotplug_status)
return;
I915_WRITE(PORT_HOTPLUG_STAT, hotplug_status);
/*
* Make sure hotplug status is cleared before we clear IIR, or else we
@ -1778,7 +1780,6 @@ static void i9xx_hpd_irq_handler(struct drm_device *dev)
hotplug_status & DP_AUX_CHANNEL_MASK_INT_STATUS_G4X)
dp_aux_irq_handler(dev);
}
}
static irqreturn_t valleyview_irq_handler(int irq, void *arg)
{