[tip:perf/core] perf tools: Fix possible double free on error

tip-bot for Thomas Jarosch
2013-01-31T11:00:43Z

Commit-ID: 68c465ada54c730d653fc6fdc9dc0d5270b2de00
Gitweb: http://git.kernel.org/tip/68c465ada54c730d653fc6fdc9dc0d5270b2de00
Author: Thomas Jarosch <thomas.jarosch@intra2net.com>
AuthorDate: Fri, 25 Jan 2013 10:57:08 +0100
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Wed, 30 Jan 2013 10:37:41 -0300

perf tools: Fix possible double free on error

Can only be triggered via CROSS_COMPILE env var.

Detected by cppcheck.

Signed-off-by: Thomas Jarosch <thomas.jarosch@intra2net.com>
Link: http://lkml.kernel.org/r/36736865.AIlztKhDqN@storm
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/arch/common.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/tools/perf/arch/common.c b/tools/perf/arch/common.c
index 3e975cb..aacef07 100644
--- a/tools/perf/arch/common.c
+++ b/tools/perf/arch/common.c
@@ -155,6 +155,7 @@ static int perf_session_env__lookup_binutils_path(struct perf_session_env *env,
if (lookup_path(buf))
goto out;
free(buf);
+ buf = NULL;
}

if (!strcmp(arch, "arm"))