Re: [PATCH 3/8] perf tools: free aliases[j] in pmu.c if name_only is true.

[Dongsheng Yang <yangds.fnst@cn.fujitsu.com>]

On 01/08/2014 10:12 AM, Arnaldo Carvalho de Melo wrote:
> What for? Please be clear in the changelogs, it helps with review.
>
> Now I'll have to follow the logic to figure this out, i.e. _why_ we
> should free aliases[j] if name_only is true? Is it safe?

Sorry for my lazy on the changelogs here :(.

As aliases is a 2-D array malloced in function print_pmu_events(), we 
should free it after printf. But we just did it when (!name_only).

This patch fix the leak error in print_pmu_events() when name_only is true.

I will update the commit message in next version.

- Yang
>
> - Arnaldo
>
> Em Mon, Dec 30, 2013 at 10:26:38AM -0500, Dongsheng Yang escreveu:
>> Signed-off-by: Dongsheng Yang <yangds.fnst@cn.fujitsu.com>
>> ---
>>   tools/perf/util/pmu.c | 1 +
>>   1 file changed, 1 insertion(+)
>>
>> diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
>> index 331dc2c..169c480 100644
>> --- a/tools/perf/util/pmu.c
>> +++ b/tools/perf/util/pmu.c
>> @@ -752,6 +752,7 @@ unsigned int print_pmu_events(const char *event_glob, bool name_only)
>>   	for (j = 0; j < len; j++) {
>>   		if (name_only) {
>>   			printf("%s ", aliases[j]);
>> +			zfree(&aliases[j]);
>>   			count++;
>>   			continue;
>>   		}
>> -- 
>> 1.8.2.1
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