This check was introduced with the logic the wrong way around.
Fixes regression: http://bugzilla.kernel.org/show_bug.cgi?id=12216
Tested-by: François Valenduc <francois.valenduc@tvcablenet.be>
Signed-off-by: Dave Airlie <airlied@redhat.com>
        else
                dev_priv->irq_enable_reg &= ~mask;
 
-       if (!dev->irq_enabled)
+       if (dev->irq_enabled)
                RADEON_WRITE(RADEON_GEN_INT_CNTL, dev_priv->irq_enable_reg);
 }
 
        else
                dev_priv->r500_disp_irq_reg &= ~mask;
 
-       if (!dev->irq_enabled)
+       if (dev->irq_enabled)
                RADEON_WRITE(R500_DxMODE_INT_MASK, dev_priv->r500_disp_irq_reg);
 }