[PATCH 3/3] staging:iio: Fix scan mask update

[Greg KH]

On Fri, Dec 09, 2011 at 10:49:45AM +0100, Lars-Peter Clausen wrote:
> On 12/08/2011 09:18 PM, Greg KH wrote:
> > On Thu, Dec 08, 2011 at 06:35:53PM +0100, Lars-Peter Clausen wrote:
> >> When updating the scan mask we have to check the actual scan mask for if the
> >> channel is already enabled, not the matching scan mask from the available
> >> scan masks. The bit will already be set there and as a result the actual
> >> scan mask will not get updated and the channel stays disabled.
> >>
> >> Also fix the return value of iio_scan_el_store which would return 1 instead of
> >> the number of bytes written if the channel was already active in the scan mask.
> > 
> > You just added a complier warning with this patch:
> >   CC [M]  drivers/staging/iio/industrialio-buffer.o
> > drivers/staging/iio/industrialio-buffer.c: In function ‘iio_scan_mask_query’:
> > drivers/staging/iio/industrialio-buffer.c:621:8: warning: unused variable ‘mask’ [-Wunused-variable]
> > 
> > So I didn't apply it.
> 
> Actually you did. At least it is in staging-next. Should I resend a updated
> patch or just a patch removing the now unused mask variable.

Ugh, you are right, I was messing with my scripts to apply patches at
the time, and forgot to delete this branch.

So, please send a follow-on patch to fix the warning.

greg k-h