[PATCH 25/66] staging: comedi: pcl812: remove "spurious interrupt" noise

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Because this driver is manually attached, the "spurious interrupt"
check in the interrupt handler should never happen. The interrupt is
only hooked up during the attach and it's released during the detach.

Leave the check but remove the noise. Also make sure to clear the
interrupt request in the hardware.

Signed-off-by: H Hartley Sweeten <hsweeten@xxxxxxxxxxxxxxxxxxx>
Cc: Ian Abbott <abbotti@xxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/staging/comedi/drivers/pcl812.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/comedi/drivers/pcl812.c b/drivers/staging/comedi/drivers/pcl812.c
index 8fa4d47..ec92e12 100644
--- a/drivers/staging/comedi/drivers/pcl812.c
+++ b/drivers/staging/comedi/drivers/pcl812.c
@@ -993,7 +993,7 @@ static irqreturn_t interrupt_pcl812(int irq, void *d)
 	struct pcl812_private *devpriv = dev->private;
 
 	if (!dev->attached) {
-		comedi_error(dev, "spurious interrupt");
+		outb(0, dev->iobase + PCL812_CLRINT);
 		return IRQ_HANDLED;
 	}
 	if (devpriv->ai_dma)
-- 
1.8.5.2

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