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 <[email protected]> Cc: Ian Abbott <[email protected]> Cc: Greg Kroah-Hartman <[email protected]> --- 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 _______________________________________________ devel mailing list [email protected] http://driverdev.linuxdriverproject.org/mailman/listinfo/devel
