Commit-ID:  f97a8991d3b998e518f56794d879f645964de649
Gitweb:     https://git.kernel.org/tip/f97a8991d3b998e518f56794d879f645964de649
Author:     Changbin Du <changbin...@gmail.com>
AuthorDate: Sat, 16 Mar 2019 16:05:55 +0800
Committer:  Arnaldo Carvalho de Melo <a...@redhat.com>
CommitDate: Tue, 19 Mar 2019 16:52:05 -0300

perf tests: Fix memory leak by expr__find_other() in test__expr()

  =================================================================
  ==7506==ERROR: LeakSanitizer: detected memory leaks

  Direct leak of 13 byte(s) in 3 object(s) allocated from:
      #0 0x7f03339d6070 in __interceptor_strdup 
(/usr/lib/x86_64-linux-gnu/libasan.so.5+0x3b070)
      #1 0x5625e53aaef0 in expr__find_other util/expr.y:221
      #2 0x5625e51bcd3f in test__expr tests/expr.c:52
      #3 0x5625e51528e6 in run_test tests/builtin-test.c:358
      #4 0x5625e5152baf in test_and_print tests/builtin-test.c:388
      #5 0x5625e51543fe in __cmd_test tests/builtin-test.c:583
      #6 0x5625e515572f in cmd_test tests/builtin-test.c:722
      #7 0x5625e51c3fb8 in run_builtin 
/home/changbin/work/linux/tools/perf/perf.c:302
      #8 0x5625e51c44f7 in handle_internal_command 
/home/changbin/work/linux/tools/perf/perf.c:354
      #9 0x5625e51c48fb in run_argv 
/home/changbin/work/linux/tools/perf/perf.c:398
      #10 0x5625e51c5069 in main /home/changbin/work/linux/tools/perf/perf.c:520
      #11 0x7f033214d09a in __libc_start_main 
(/lib/x86_64-linux-gnu/libc.so.6+0x2409a)

Signed-off-by: Changbin Du <changbin...@gmail.com>
Cc: Alexei Starovoitov <a...@kernel.org>
Cc: Andi Kleen <a...@linux.intel.com>
Cc: Daniel Borkmann <dan...@iogearbox.net>
Cc: Jiri Olsa <jo...@kernel.org>
Cc: Namhyung Kim <namhy...@kernel.org>
Cc: Peter Zijlstra <pet...@infradead.org>
Cc: Steven Rostedt (VMware) <rost...@goodmis.org>
Fixes: 075167363f8b ("perf tools: Add a simple expression parser for JSON")
Link: http://lkml.kernel.org/r/20190316080556.3075-16-changbin...@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com>
---
 tools/perf/tests/expr.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/tools/perf/tests/expr.c b/tools/perf/tests/expr.c
index 01f0706995a9..9acc1e80b936 100644
--- a/tools/perf/tests/expr.c
+++ b/tools/perf/tests/expr.c
@@ -19,7 +19,7 @@ int test__expr(struct test *t __maybe_unused, int subtest 
__maybe_unused)
        const char *p;
        const char **other;
        double val;
-       int ret;
+       int i, ret;
        struct parse_ctx ctx;
        int num_other;
 
@@ -56,6 +56,9 @@ int test__expr(struct test *t __maybe_unused, int subtest 
__maybe_unused)
        TEST_ASSERT_VAL("find other", !strcmp(other[1], "BAZ"));
        TEST_ASSERT_VAL("find other", !strcmp(other[2], "BOZO"));
        TEST_ASSERT_VAL("find other", other[3] == NULL);
+
+       for (i = 0; i < num_other; i++)
+               free((void *)other[i]);
        free((void *)other);
 
        return 0;

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