[PATCH v2] A trivial memory leak fix while calling system_path

[liang xie <xieliang007@gmail.com>]

A trivial memory leak fix while calling system_path

Since v1: Remove an unnecessary null pointer check per Felipe's comments

Signed-off-by: Liang Xie <xieliang@xiaomi.com>
---
 tools/perf/util/exec_cmd.c |    4 +++-
 tools/perf/util/help.c     |    1 +
 2 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/tools/perf/util/exec_cmd.c b/tools/perf/util/exec_cmd.c
index 7adf4ad..d041407 100644
--- a/tools/perf/util/exec_cmd.c
+++ b/tools/perf/util/exec_cmd.c
@@ -83,8 +83,9 @@ void setup_path(void)
 {
 	const char *old_path = getenv("PATH");
 	struct strbuf new_path = STRBUF_INIT;
+	const char *exec_path = perf_exec_path();

-	add_path(&new_path, perf_exec_path());
+	add_path(&new_path, exec_path);
 	add_path(&new_path, argv0_path);

 	if (old_path)
@@ -95,6 +96,7 @@ void setup_path(void)
 	setenv("PATH", new_path.buf, 1);

 	strbuf_release(&new_path);
+	free((void *)exec_path);
 }

 static const char **prepare_perf_cmd(const char **argv)
diff --git a/tools/perf/util/help.c b/tools/perf/util/help.c
index 6f2975a..798f66d 100644
--- a/tools/perf/util/help.c
+++ b/tools/perf/util/help.c
@@ -187,6 +187,7 @@ void load_command_list(const char *prefix,
 		uniq(other_cmds);
 	}
 	exclude_cmds(other_cmds, main_cmds);
+	free((void *)exec_path);
 }

 void list_commands(const char *title, struct cmdnames *main_cmds,
-- 
1.7.1