linux-kernel - Re: [PATCH 5/9] perf utils: add support for arch standard events

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Date:   Thu, 8 Feb 2018 14:02:50 +0000
From:   Alan Cox <gnomes@...rguk.ukuu.org.uk>
To:     Jiri Olsa <jolsa@...hat.com>
Cc:     John Garry <john.garry@...wei.com>, peterz@...radead.org,
        mingo@...hat.com, acme@...nel.org,
        alexander.shishkin@...ux.intel.com, namhyung@...nel.org,
        ak@...ux.intel.com, wcohen@...hat.com, will.deacon@....com,
        ganapatrao.kulkarni@...ium.com, linux-kernel@...r.kernel.org,
        linuxarm@...wei.com, zhangshaokun@...ilicon.com,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 5/9] perf utils: add support for arch standard events

On Thu, 8 Feb 2018 14:54:23 +0100
Jiri Olsa <jolsa@...hat.com> wrote:

> On Wed, Feb 07, 2018 at 01:45:00AM +0800, John Garry wrote:
> 
> SNIP
> 
> >  static void print_events_table_suffix(FILE *outfp)
> >  {
> >  	fprintf(outfp, "{\n");
> > @@ -407,6 +469,52 @@ static char *real_event(const char *name, char *event)
> >  	return event;
> >  }
> >  
> > +static void fixup_field(char *from, char **to)
> > +{
> > +	*to = malloc(strlen(from));
> > +
> > +	strcpy(*to, from);
> > +}  
> 
> could you just call '*to = strdup(from)' in here?

And check for malloc returning NULL.

Alan