[PATCH] Fix stdio init handling

[Hans-Peter Nilsson]

> From: Torbjorn SVENSSON <torbjorn.svensson@st.com>
> Date: Tue, 7 Jun 2022 08:05:01 +0200


> >   FILE *f = fopen("fff", "r");
> >   int c = fgetc(f);
> > 
> >   if (f == NULL)
> >     {
> >       perror("fopen");
> >       abort();
> >     }
> > 
> 
> Unrelated to the patch proposed, but I think you should
> avoid calling fgetc(f) prior to checking if f is NULL or a
> valid pointer.
> 
> Kind regards,
> Torbjörn

You're absolutely right, and I am fully aware.  I'll
clarify: this was only intended was a quick reproducer of
the problem, not a model program.

brgds, H-P