From 1e2e39effd11ca7c09cc47aff9e99d976109bbe8 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 9 Sep 2014 16:15:59 -0700 Subject: [PATCH] staging: comedi: pcmuio: return void from pcmuio_start_intr() This function always returns '0' so the comedi_event() is never done by the callers. Change the return type to void and remove the comedi_event() dead code. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman --- drivers/staging/comedi/drivers/pcmuio.c | 18 ++++-------------- 1 file changed, 4 insertions(+), 14 deletions(-) diff --git a/drivers/staging/comedi/drivers/pcmuio.c b/drivers/staging/comedi/drivers/pcmuio.c index a0d31718a096..d4fe2ec25ecf 100644 --- a/drivers/staging/comedi/drivers/pcmuio.c +++ b/drivers/staging/comedi/drivers/pcmuio.c @@ -403,8 +403,8 @@ static irqreturn_t pcmuio_interrupt(int irq, void *d) } /* chip->spinlock is already locked */ -static int pcmuio_start_intr(struct comedi_device *dev, - struct comedi_subdevice *s) +static void pcmuio_start_intr(struct comedi_device *dev, + struct comedi_subdevice *s) { struct pcmuio_private *devpriv = dev->private; int asic = pcmuio_subdevice_to_asic(s); @@ -433,8 +433,6 @@ static int pcmuio_start_intr(struct comedi_device *dev, /* set pol and enab intrs for this subdev.. */ pcmuio_write(dev, pol_bits, asic, PCMUIO_PAGE_POL, 0); pcmuio_write(dev, bits, asic, PCMUIO_PAGE_ENAB, 0); - - return 0; } static int pcmuio_cancel(struct comedi_device *dev, struct comedi_subdevice *s) @@ -461,7 +459,6 @@ static int pcmuio_inttrig_start_intr(struct comedi_device *dev, int asic = pcmuio_subdevice_to_asic(s); struct pcmuio_asic *chip = &devpriv->asics[asic]; unsigned long flags; - int event = 0; if (trig_num != cmd->start_arg) return -EINVAL; @@ -469,13 +466,10 @@ static int pcmuio_inttrig_start_intr(struct comedi_device *dev, spin_lock_irqsave(&chip->spinlock, flags); s->async->inttrig = NULL; if (chip->active) - event = pcmuio_start_intr(dev, s); + pcmuio_start_intr(dev, s); spin_unlock_irqrestore(&chip->spinlock, flags); - if (event) - comedi_event(dev, s); - return 1; } @@ -489,7 +483,6 @@ static int pcmuio_cmd(struct comedi_device *dev, struct comedi_subdevice *s) int asic = pcmuio_subdevice_to_asic(s); struct pcmuio_asic *chip = &devpriv->asics[asic]; unsigned long flags; - int event = 0; spin_lock_irqsave(&chip->spinlock, flags); chip->active = 1; @@ -500,13 +493,10 @@ static int pcmuio_cmd(struct comedi_device *dev, struct comedi_subdevice *s) if (cmd->start_src == TRIG_INT) s->async->inttrig = pcmuio_inttrig_start_intr; else /* TRIG_NOW */ - event = pcmuio_start_intr(dev, s); + pcmuio_start_intr(dev, s); spin_unlock_irqrestore(&chip->spinlock, flags); - if (event) - comedi_event(dev, s); - return 0; } -- 2.39.5