Re: [PATCH 4/4] iio: dac: ad3552r-hs: add support for internal ramp

From: Marcelo Schmitt
Date: Thu Mar 27 2025 - 08:11:03 EST


On 03/27, Angelo Dureghello wrote:
> On 26.03.2025 18:52, Marcelo Schmitt wrote:
> > Hello Angelo,
> >
> > Patch looks good to me.
> > One minor comment bellow.
> >
> > On 03/21, Angelo Dureghello wrote:
> > > From: Angelo Dureghello <adureghello@xxxxxxxxxxxx>
> > >
...
> > > +
> > > +static ssize_t ad3552r_hs_write_data_source(struct file *f,
> > > + const char __user *userbuf,
> > > + size_t count, loff_t *ppos)
> > > +{
> > > + struct ad3552r_hs_state *st = file_inode(f)->i_private;
> > > + char buf[64];
> > > + int ret;
> > > +
> > > + ret = simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, userbuf,
> > > + count);
> > > + if (ret < 0)
> > > + return ret;
> > > +
> > > + buf[count] = 0;
> > Shouldn't it be
> > buf[count] = '\0';
>
> Why ? I am zero-terminating the string properly.

Oh, okay. I was just more used to see '\0' as buffer/string terminator.
I see now buf[count] = 0; should work too.

>
> > ?
>
> Regards,
> angelo

Regards,
Marcelo