On Wed, Nov 27, 2013 at 05:33:40PM +0000, Hartley Sweeten wrote:
> On Tuesday, November 26, 2013 4:42 PM, H Hartley Sweeten wrote:
> > Tidy up the code that does the request_irq().
> >
> > Signed-off-by: H Hartley Sweeten <hsweeten@xxxxxxxxxxxxxxxxxxx>
> > Cc: Ian Abbott <abbotti@xxxxxxxxx>
> > Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
> > ---
> > drivers/staging/comedi/drivers/pcl816.c | 33 ++++++---------------------------
> > 1 file changed, 6 insertions(+), 27 deletions(-)
> >
> > diff --git a/drivers/staging/comedi/drivers/pcl816.c b/drivers/staging/comedi/drivers/pcl816.c
> > index 149a28b..ad75bb6 100644
> > --- a/drivers/staging/comedi/drivers/pcl816.c
> > +++ b/drivers/staging/comedi/drivers/pcl816.c
> > @@ -872,36 +872,15 @@ static int pcl816_attach(struct comedi_device *dev, struct comedi_devconfig *it)
> > if (!devpriv)
> > return -ENOMEM;
> >
> > - /* grab our IRQ */
> > - irq = 0;
> > - if (board->IRQbits != 0) { /* board support IRQ */
> > - irq = it->options[1];
> > - if (irq) { /* we want to use IRQ */
> > - if (((1 << irq) & board->IRQbits) == 0) {
> > - printk
> > - (", IRQ %u is out of allowed range, "
> > - "DISABLING IT", irq);
> > - irq = 0; /* Bad IRQ */
> > - } else {
> > - if (request_irq(irq, interrupt_pcl816, 0,
> > - dev->board_name, dev)) {
> > - printk
> > - (", unable to allocate IRQ %u, "
> > - "DISABLING IT", irq);
> > - irq = 0; /* Can't use IRQ */
> > - } else {
> > - printk(KERN_INFO ", irq=%u", irq);
> > - }
> > - }
> > + if ((1 << it->options[1]) & board->IRQbits) {
> > + ret = request_irq(board->IRQbits, interrupt_pcl816, 0,
> > + dev->board_name, dev);
> > + if (ret == 0) {
> > + dev->irq = irq;
>
> I just noticed a bug in this patch. The code above should be:
>
> + ret = request_irq(it->options[1], interrupt_pcl816, 0,
> + dev->board_name, dev);
> + if (ret == 0) {
> + dev->irq = it->options[1];
>
> And the local variable 'irq' should have been removed.
>
> The sparse output has been a bit jacked up lately and I missed this.
>
> Greg,
>
> Can I just fix this patch (51/60) and repost it or would you prefer to
> take patches 1-50 and have me repost 51-60 after fixing this one?
I'll just take your v2 of the patch, no worries.
greg k-h
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