From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Thu, 26 Feb 2015 14:47:18 +0000 (-0300)
Subject: perf probe: Handle strdup() failure
X-Git-Tag: v4.1-rc1~84^2~69^2~15
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=38ae502b1df196f712f6f5d3609afc36337b330b;p=uclinux-h8%2Flinux.git

perf probe: Handle strdup() failure

We could end up returning 0 (Ok) with a NULL raw_path. Fix it.

Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Naohiro Aota <naota@elisp.net>
Link: http://lkml.kernel.org/n/tip-l0kcbcg5f4nnzqt01cv42vec@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---

diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index 4a93bf433344..9526cf37682e 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -533,7 +533,7 @@ static int get_real_path(const char *raw_path, const char *comp_dir,
 		else {
 			if (access(raw_path, R_OK) == 0) {
 				*new_path = strdup(raw_path);
-				return 0;
+				return *new_path ? 0 : -ENOMEM;
 			} else
 				return -errno;
 		}