[perf PATCH] Fix possible double free on error

[Thomas Jarosch]

Can only be triggered via CROSS_COMPILE env var.
Detected by cppcheck.

Signed-off-by: Thomas Jarosch <thomas.jarosch@xxxxxxxxxxxxx>
---
 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"))
-- 
1.7.11.7

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