Em Mon, Jun 06, 2016 at 07:52:53PM +0900, Taeung Song escreveu:
> Because of die() at perf_parse_file() a config set was freed
> in collect_config(), if failed.
> But it is natural to free a config set after collect_config() is done
> when some problems happened.
>
> So, in case of failure, lastly free a config set at perf_config_set__new()
> instead of freeing the config set in collect_config().
>
> Cc: Namhyung Kim <namhy...@kernel.org>
> Cc: Jiri Olsa <jo...@redhat.com>
> Cc: Masami Hiramatsu <mhira...@kernel.org>
> Cc: Alexander Shishkin <alexander.shish...@linux.intel.com>
> Signed-off-by: Taeung Song <treeze.tae...@gmail.com>
> ---
> tools/perf/util/config.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/tools/perf/util/config.c b/tools/perf/util/config.c
> index b500737..d013f90 100644
> --- a/tools/perf/util/config.c
> +++ b/tools/perf/util/config.c
> @@ -639,7 +639,6 @@ static int collect_config(const char *var, const char
> *value,
>
> out_free:
> free(key);
> - perf_config_set__delete(set);
> return -1;
> }
>
> @@ -649,7 +648,8 @@ struct perf_config_set *perf_config_set__new(void)
>
> if (set) {
> INIT_LIST_HEAD(&set->sections);
> - perf_config(collect_config, set);
> + if (perf_config(collect_config, set) < 0)
> + perf_config_set__delete(set);
> }
>
> return set;
You can't do that, there is something missing, without looking at the
code I think you need:
if (set) {
INIT_LIST_HEAD(&set->sections);
- perf_config(collect_config, set);
+ if (perf_config(collect_config, set) < 0) {
+ perf_config_set__delete(set);
+ set = NULL;
+ }
}
return set;
No?
- Arnaldo
