lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

staging: comedi: rtd520: remove 'intCount' from the private data

Browse Source 
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@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
H Hartley Sweeten
2012-10-29 10:04:58 -07:00
committed by Greg Kroah-Hartman
parent d62bc46866
commit 16756f7c3f
1 changed files with 0 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/staging/comedi/drivers/rtd520.c
View File

@@ -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;