Re: [RFC PATCH 01/22] perf: probe: avoid segfault if passed with ''.

[Arnaldo Carvalho de Melo]

Em Tue, May 05, 2015 at 11:09:21PM +0900, Masami Hiramatsu escreveu:
> On 2015/04/30 19:52, Wang Nan wrote:
> > Since parse_perf_probe_point() deals with a user passed argument, we
> > should not assume it to be a valid string.
> > 
> > Without this patch, if pass '' to perf probe, a segfault raises:
> > 
> >  $ perf probe -a ''
> >  Segmentation fault

> > This patch checks argument of parse_perf_probe_point() before
> > string processing.

> > After this patch:

> >  $ perf probe -a ''
> > 
> >   usage: perf probe [<options>] 'PROBEDEF' ['PROBEDEF' ...]
> >      or: perf probe [<options>] --add 'PROBEDEF' [--add 'PROBEDEF' ...]
> >      ...
 
> This looks OK to me.
 
> Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@xxxxxxxxxxx>
 
> Could you split this as an independent bugfix with my ack?

You mean split from this patchkit? I already did that, added it to my
perf/urgent branch, where I'll add your acked-by as well,

- Arnaldo
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