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perf test: Free formats for perf pmu parse test

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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: cff7f956ec ("perf tests: Move pmu tests into separate object")
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lore.kernel.org/lkml/20200915031819.386559-12-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Namhyung Kim 2020-09-15 12:18:19 +09:00 committed by Arnaldo Carvalho de Melo
parent 6f47ed6cd1
commit d26383dcb2
3 changed files with 13 additions and 0 deletions
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1
tools/perf/tests/pmu.c
View File

@ -173,6 +173,7 @@ int test__pmu(struct test *test __maybe_unused, int subtest __maybe_unused)
ret = 0; ret = 0;
} while (0); } while (0);
perf_pmu__del_formats(&formats);
test_format_dir_put(format); test_format_dir_put(format);
return ret; return ret;
} }

11
tools/perf/util/pmu.c
View File

@ -1354,6 +1354,17 @@ void perf_pmu__set_format(unsigned long *bits, long from, long to)
set_bit(b, bits); 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) static int sub_non_neg(int a, int b)
{ {
if (b > a) if (b > a)

1
tools/perf/util/pmu.h
View File

@ -94,6 +94,7 @@ int perf_pmu__new_format(struct list_head *list, char *name,
int config, unsigned long *bits); int config, unsigned long *bits);
void perf_pmu__set_format(unsigned long *bits, long from, long to); void perf_pmu__set_format(unsigned long *bits, long from, long to);
int perf_pmu__format_parse(char *dir, struct list_head *head); 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); struct perf_pmu *perf_pmu__scan(struct perf_pmu *pmu);