`labpc_ai_cmd()` calls `labpc_cancel()` which already sets `devpriv->cmd3` to 0. Remove the lines from `labpc_ai_cmd()` that clear specific bits in `devpriv->cmd3` explicitly as they have no effect. Signed-off-by: Ian Abbott <abbotti@xxxxxxxxx> --- drivers/staging/comedi/drivers/ni_labpc.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/drivers/staging/comedi/drivers/ni_labpc.c b/drivers/staging/comedi/drivers/ni_labpc.c index 0783d65..7dec029 100644 --- a/drivers/staging/comedi/drivers/ni_labpc.c +++ b/drivers/staging/comedi/drivers/ni_labpc.c @@ -975,8 +975,7 @@ static int labpc_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) release_dma_lock(irq_flags); /* enable board's dma */ devpriv->cmd3 |= (CMD3_DMAEN | CMD3_DMATCINTEN); - } else - devpriv->cmd3 &= ~(CMD3_DMAEN | CMD3_DMATCINTEN); + } #endif /* enable error interrupts */ @@ -984,8 +983,6 @@ static int labpc_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) /* enable fifo not empty interrupt? */ if (xfer == fifo_not_empty_transfer) devpriv->cmd3 |= CMD3_FIFOINTEN; - else - devpriv->cmd3 &= ~CMD3_FIFOINTEN; devpriv->write_byte(devpriv->cmd3, dev->iobase + CMD3_REG); /* setup any external triggering/pacing (cmd4 register) */ -- 1.8.2.1 _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel