From: Namhyung Kim <namhy...@kernel.org>

[ Upstream commit d26383dcb2b4b8629fde05270b4e3633be9e3d4b ]

The following leaks were detected by ASAN:

  Indirect leak of 360 byte(s) in 9 object(s) allocated from:
    #0 0x7fecc305180e in calloc (/lib/x86_64-linux-gnu/libasan.so.5+0x10780e)
    #1 0x560578f6dce5 in perf_pmu__new_format util/pmu.c:1333
    #2 0x560578f752fc in perf_pmu_parse util/pmu.y:59
    #3 0x560578f6a8b7 in perf_pmu__format_parse util/pmu.c:73
    #4 0x560578e07045 in test__pmu tests/pmu.c:155
    #5 0x560578de109b in run_test tests/builtin-test.c:410
    #6 0x560578de109b in test_and_print tests/builtin-test.c:440
    #7 0x560578de401a in __cmd_test tests/builtin-test.c:661
    #8 0x560578de401a in cmd_test tests/builtin-test.c:807
    #9 0x560578e49354 in run_builtin 
/home/namhyung/project/linux/tools/perf/perf.c:312
    #10 0x560578ce71a8 in handle_internal_command 
/home/namhyung/project/linux/tools/perf/perf.c:364
    #11 0x560578ce71a8 in run_argv 
/home/namhyung/project/linux/tools/perf/perf.c:408
    #12 0x560578ce71a8 in main 
/home/namhyung/project/linux/tools/perf/perf.c:538
    #13 0x7fecc2b7acc9 in __libc_start_main ../csu/libc-start.c:308

Fixes: cff7f956ec4a1 ("perf tests: Move pmu tests into separate object")
Signed-off-by: Namhyung Kim <namhy...@kernel.org>
Acked-by: Jiri Olsa <jo...@redhat.com>
Cc: Alexander Shishkin <alexander.shish...@linux.intel.com>
Cc: Andi Kleen <a...@linux.intel.com>
Cc: Ian Rogers <irog...@google.com>
Cc: Mark Rutland <mark.rutl...@arm.com>
Cc: Peter Zijlstra <pet...@infradead.org>
Cc: Stephane Eranian <eran...@google.com>
Link: http://lore.kernel.org/lkml/20200915031819.386559-12-namhy...@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com>
Signed-off-by: Sasha Levin <sas...@kernel.org>
---
 tools/perf/tests/pmu.c |  1 +
 tools/perf/util/pmu.c  | 11 +++++++++++
 tools/perf/util/pmu.h  |  1 +
 3 files changed, 13 insertions(+)

diff --git a/tools/perf/tests/pmu.c b/tools/perf/tests/pmu.c
index 74379ff1f7fa0..46cd1db85bd06 100644
--- a/tools/perf/tests/pmu.c
+++ b/tools/perf/tests/pmu.c
@@ -173,6 +173,7 @@ int test__pmu(struct test *test __maybe_unused, int subtest 
__maybe_unused)
                ret = 0;
        } while (0);
 
+       perf_pmu__del_formats(&formats);
        test_format_dir_put(format);
        return ret;
 }
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index 5608da82ad239..628a6d5a5b384 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -1294,6 +1294,17 @@ void perf_pmu__set_format(unsigned long *bits, long 
from, long to)
                set_bit(b, bits);
 }
 
+void perf_pmu__del_formats(struct list_head *formats)
+{
+       struct perf_pmu_format *fmt, *tmp;
+
+       list_for_each_entry_safe(fmt, tmp, formats, list) {
+               list_del(&fmt->list);
+               free(fmt->name);
+               free(fmt);
+       }
+}
+
 static int sub_non_neg(int a, int b)
 {
        if (b > a)
diff --git a/tools/perf/util/pmu.h b/tools/perf/util/pmu.h
index f36ade6df76d1..9570d9b26250f 100644
--- a/tools/perf/util/pmu.h
+++ b/tools/perf/util/pmu.h
@@ -81,6 +81,7 @@ int perf_pmu__new_format(struct list_head *list, char *name,
                         int config, unsigned long *bits);
 void perf_pmu__set_format(unsigned long *bits, long from, long to);
 int perf_pmu__format_parse(char *dir, struct list_head *head);
+void perf_pmu__del_formats(struct list_head *formats);
 
 struct perf_pmu *perf_pmu__scan(struct perf_pmu *pmu);
 
-- 
2.25.1



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