diff options
| author | Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> | 2023-07-17 16:14:50 +0300 |
|---|---|---|
| committer | Shuah Khan <skhan@linuxfoundation.org> | 2023-07-25 17:52:14 +0300 |
| commit | 2d320b1029ee7329ee0638181be967789775b962 (patch) | |
| tree | f7951e10fe0de73d00c2a6c258c5286597c9422f /tools/testing/selftests/resctrl | |
| parent | 8e289f4542890168705219e54f0231dccfabddbe (diff) | |
| download | linux-2d320b1029ee7329ee0638181be967789775b962.tar.xz | |
selftests/resctrl: Don't leak buffer in fill_cache()
The error path in fill_cache() does return before the allocated buffer
is freed leaking the buffer.
The leak was introduced when fill_cache_read() started to return errors
in commit c7b607fa9325 ("selftests/resctrl: Fix null pointer
dereference on open failed"), before that both fill functions always
returned 0.
Move free() earlier to prevent the mem leak.
Fixes: c7b607fa9325 ("selftests/resctrl: Fix null pointer dereference on open failed")
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Tested-by: Babu Moger <babu.moger@amd.com>
Tested-by: Shaopeng Tan (Fujitsu) <tan.shaopeng@fujitsu.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Diffstat (limited to 'tools/testing/selftests/resctrl')
| -rw-r--r-- | tools/testing/selftests/resctrl/fill_buf.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/tools/testing/selftests/resctrl/fill_buf.c b/tools/testing/selftests/resctrl/fill_buf.c index 341cc93ca84c..3b328c844896 100644 --- a/tools/testing/selftests/resctrl/fill_buf.c +++ b/tools/testing/selftests/resctrl/fill_buf.c @@ -177,12 +177,13 @@ fill_cache(unsigned long long buf_size, int malloc_and_init, int memflush, else ret = fill_cache_write(start_ptr, end_ptr, resctrl_val); + free(startptr); + if (ret) { printf("\n Error in fill cache read/write...\n"); return -1; } - free(startptr); return 0; } |