This variable is cleared when an ai command is initiated and then
incremented with each interrupt. Other than that it's never used.
Just remove it.
Signed-off-by: H Hartley Sweeten <hsweeten@xxxxxxxxxxxxxxxxxxx>
Cc: Ian Abbott <abbotti@xxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/staging/comedi/drivers/rtd520.c | 4 ----
1 file changed, 4 deletions(-)
diff --git a/drivers/staging/comedi/drivers/rtd520.c b/drivers/staging/comedi/drivers/rtd520.c
index 6af19bc..f118e85 100644
--- a/drivers/staging/comedi/drivers/rtd520.c
+++ b/drivers/staging/comedi/drivers/rtd520.c
@@ -289,7 +289,6 @@ struct rtdPrivate {
void __iomem *las1;
void __iomem *lcfg;
- unsigned long intCount; /* interrupt count */
long aiCount; /* total transfer size (samples) */
int transCount; /* # to transfer data. 0->1/2FIFO */
int flags; /* flag event modes */
@@ -630,8 +629,6 @@ static irqreturn_t rtd_interrupt(int irq, /* interrupt number (ignored) */
if (!dev->attached)
return IRQ_NONE;
- devpriv->intCount++; /* DEBUG statistics */
-
fifoStatus = readl(devpriv->las0 + LAS0_ADC);
/* check for FIFO full, this automatically halts the ADC! */
if (!(fifoStatus & FS_ADC_NOT_FULL)) /* 0 -> full */
@@ -903,7 +900,6 @@ static int rtd_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
writew(devpriv->intMask, devpriv->las0 + LAS0_IT);
writel(0, devpriv->las0 + LAS0_ADC_FIFO_CLEAR);
writel(0, devpriv->las0 + LAS0_OVERRUN);
- devpriv->intCount = 0;
if (!dev->irq) /* we need interrupts for this */
return -ENXIO;
--
1.7.11
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