On Thu, 16 Feb 2023 05:40:46 -0800
Lars-Peter Clausen <lars@xxxxxxxxxx> wrote:
> On 2/16/23 02:14, Nuno Sá wrote:
> > If for some reason 'rb->access->write()' does not write the full
> > requested data and the O_NONBLOCK is set, we would return 'n' to
> > userspace which is not really truth. Hence, let's return the number of
> > bytes we effectively wrote.
> >
> > Fixes: 9eeee3b0bf190 ("iio: Add output buffer support")
> > Signed-off-by: Nuno Sá <nuno.sa@xxxxxxxxxx>
>
> Reviewed-by: Lars-Peter Clausen <lars@xxxxxxxxxx>
Applied to the fixes-togreg branch of iio.git and marked for stable.
Thanks,
J
>
> > ---
> > drivers/iio/industrialio-buffer.c | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c
> > index 228598b82a2f..c56cf748fde1 100644
> > --- a/drivers/iio/industrialio-buffer.c
> > +++ b/drivers/iio/industrialio-buffer.c
> > @@ -220,7 +220,7 @@ static ssize_t iio_buffer_write(struct file *filp, const char __user *buf,
> > } while (ret == 0);
> > remove_wait_queue(&rb->pollq, &wait);
> >
> > - return ret < 0 ? ret : n;
> > + return ret < 0 ? ret : written;
> > }
> >
> > /**
>
>
