[PATCH perf/core ] [BUGFIX] perf-probe: Fix get_real_path to free allocated memory in error path

From: Masami Hiramatsu
Date: Thu Feb 26 2015 - 03:26:15 EST


Fix get_real_path to free allocated memory when comp_dir
is used for complementing path and getting an error.

Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@xxxxxxxxxxx>
---
tools/perf/util/probe-event.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index 9dfbed9..43cc534 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -549,9 +549,11 @@ static int get_real_path(const char *raw_path, const char *comp_dir,
if (access(*new_path, R_OK) == 0)
return 0;

- if (!symbol_conf.source_prefix)
+ if (!symbol_conf.source_prefix) {
/* In case of searching comp_dir, don't retry */
+ zfree(new_path);
return -errno;
+ }

switch (errno) {
case ENAMETOOLONG:

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