On Fri, Jul 25, 2014 at 06:23:10PM +0000, Hartley Sweeten wrote:
> On Friday, July 25, 2014 10:07 AM, Ian Abbott wrote:
> > `dio200_detach()` in "amplc_dio200.c" calls
> > `amplc_dio200_common_detach()` in "amplc_dio200_common.c", followed by
> > `comedi_legacy_detach()` in "../drivers.c". Both of those functions
> > call `free_irq()` if `dev->irq` is non-zero. The second call produces a
> > warning message because the handler has already been freed. Prevent
> > that by setting `dev->irq = 0` in `amplc_dio200_common_detach()`.
> >
> > Signed-off-by: Ian Abbott <abbotti@xxxxxxxxx>
> > ---
> > drivers/staging/comedi/drivers/amplc_dio200_common.c | 4 +++-
> > 1 file changed, 3 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/staging/comedi/drivers/amplc_dio200_common.c b/drivers/staging/comedi/drivers/amplc_dio200_common.c
> > index 78700e8..3592e58 100644
> > --- a/drivers/staging/comedi/drivers/amplc_dio200_common.c
> > +++ b/drivers/staging/comedi/drivers/amplc_dio200_common.c
> > @@ -1202,8 +1202,10 @@ void amplc_dio200_common_detach(struct comedi_device *dev)
> >
> > if (!thisboard || !devpriv)
> > return;
> > - if (dev->irq)
> > + if (dev->irq) {
> > free_irq(dev->irq, dev);
> > + dev->irq = 0;
> > + }
> > }
> > EXPORT_SYMBOL_GPL(amplc_dio200_common_detach);
>
> Ian,
>
> I have already gave a Reviewed-by signoff for this series.
>
> After looking over the code I think a cleaner solution would be to:
>
> 1) Use comedi_legacy_detach() directly for the (*detach) in the
> legacy ISA driver.
> 2) Move the code from amplc_dio200_common_detach() into the
> (*detach) function for the PCI driver.
> 3) Remove the exported function amplc_dio200_common_detach().
So should I not apply these patches?
confused,
greg k-h
_______________________________________________
devel mailing list
devel@xxxxxxxxxxxxxxxxxxxxxx
http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
