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staging: comedi: pcmmio: return '0' after successful attach

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The comedi core expects the (*attach) functions to return < 0 to indicate
an error or >= 0 for success. Change the return to '0' as that is more
typical.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
H Hartley Sweeten 2013-12-09 15:31:21 -07:00 committed by Greg Kroah-Hartman
parent 23bafad0d1
commit 748cfd987b
1 changed files with 3 additions and 1 deletions
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4
drivers/staging/comedi/drivers/pcmmio.c
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@ -320,6 +320,7 @@ static void pcmmio_reset(struct comedi_device *dev)
pcmmio_dio_write(dev, 0, PCMMIO_PAGE_INT_ID, 0);
}
/* devpriv->spinlock is already locked */
static void pcmmio_stop_intr(struct comedi_device *dev,
struct comedi_subdevice *s)
{
@ -410,6 +411,7 @@ static irqreturn_t interrupt_pcmmio(int irq, void *d)
return IRQ_HANDLED;
}
/* devpriv->spinlock is already locked */
static int pcmmio_start_intr(struct comedi_device *dev,
struct comedi_subdevice *s)
{
@ -842,7 +844,7 @@ static int pcmmio_attach(struct comedi_device *dev, struct comedi_devconfig *it)
s->insn_bits = pcmmio_dio_insn_bits;
s->insn_config = pcmmio_dio_insn_config;
return 1;
return 0;
}
static struct comedi_driver pcmmio_driver = {