drm/i915: fix typo in display IRQ mask when disabling IRQs

Introduced in
commit e0e33f8ff6f0b6d286afc314802be4993341bd47
Author: Imre Deak <imre.deak@intel.com>
Date:   Tue Mar 4 19:23:07 2014 +0200

The impact was luckily minimal, due to the extra check we do against a
software pipestat IRQ mask.

Caught by Fengguang's 0-day tester.

Cc: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index be2713f12e082ba5b972cddced1ac06c4bb0cf7d..c8e262fc750a480472ae2a36047cfadc4a79ec83 100644 (file)
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -3074,7 +3074,7 @@ static void valleyview_display_irqs_uninstall(struct drm_i915_private *dev_priv)
 
        iir_mask = I915_DISPLAY_PORT_INTERRUPT |
                   I915_DISPLAY_PIPE_A_EVENT_INTERRUPT |
-                  I915_DISPLAY_PIPE_A_EVENT_INTERRUPT;
+                  I915_DISPLAY_PIPE_B_EVENT_INTERRUPT;
 
        dev_priv->irq_mask |= iir_mask;
        I915_WRITE(VLV_IER, ~dev_priv->irq_mask);