> > +struct i2c_demux_pinctrl_priv {
> > + int cur_chan;
> > + int num_chan;
>
> This is always positive, so you can make num_chan and a few loop counters
> unsigned.
Nope, sadly not. cur_chan can get a -ERRNO, and the type of num_chan is
defined by the return type of of_count_phandle_with_args().
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