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perf tools: fix thread_map__new_by_pid_str() memory leak in error path 

The namelist array (including its content) was not freed if we fail to
realloc a new 'threads' structure.

Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com>
Cc: David Ahern <dsahern@gmail.com>
Link: http://lkml.kernel.org/r/1337952109-31995-1-git-send-email-fbuihuu@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Franck Bui-Huu 2012-05-25 15:21:49 +02:00 committed by Arnaldo Carvalho de Melo
parent a83eb3ea97
commit e8cdd94777
1 changed files with 10 additions and 11 deletions
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21
tools/perf/util/thread_map.c
View File

@ -188,28 +188,27 @@ static struct thread_map *thread_map__new_by_pid_str(const char *pid_str)
nt = realloc(threads, (sizeof(*threads) +
sizeof(pid_t) * total_tasks));
if (nt == NULL)
goto out_free_threads;
goto out_free_namelist;
threads = nt;
if (threads) {
for (i = 0; i < items; i++)
threads->map[j++] = atoi(namelist[i]->d_name);
threads->nr = total_tasks;
}
for (i = 0; i < items; i++)
for (i = 0; i < items; i++) {
threads->map[j++] = atoi(namelist[i]->d_name);
free(namelist[i]);
}
threads->nr = total_tasks;
free(namelist);
if (!threads)
break;
}
out:
strlist__delete(slist);
return threads;
out_free_namelist:
for (i = 0; i < items; i++)
free(namelist[i]);
free(namelist);
out_free_threads:
free(threads);
threads = NULL;