diff options
| author | Zilin Guan <zilin@seu.edu.cn> | 2026-01-06 09:13:18 +0000 |
|---|---|---|
| committer | Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> | 2026-01-26 15:46:32 +0200 |
| commit | 2ee832305a25657d7cfb577bc30d8c1d43bfb951 (patch) | |
| tree | d450eba553d6f91d0bc4ac893c9382306e7d959e /drivers/platform | |
| parent | 6343e06788e2edb822cd871e3e198a4ef69e3223 (diff) | |
platform/x86/amd: Use scope-based cleanup for wbrf_record()
Simplify resource management in wbrf_record() by using the scope-based
cleanup helper __free(). This ensures that the tmp and obj are
automatically freed when they go out of scope, eliminating the need for
explicit error handling labels and manual freeing.
Suggested-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Suggested-by: Markus Elfring <Markus.Elfring@web.de>
Co-developed-by: Jianhao Xu <jianhao.xu@seu.edu.cn>
Signed-off-by: Jianhao Xu <jianhao.xu@seu.edu.cn>
Signed-off-by: Zilin Guan <zilin@seu.edu.cn>
Link: https://patch.msgid.link/20260106091318.747019-2-zilin@seu.edu.cn
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Diffstat (limited to 'drivers/platform')
| -rw-r--r-- | drivers/platform/x86/amd/wbrf.c | 25 |
1 files changed, 8 insertions, 17 deletions
diff --git a/drivers/platform/x86/amd/wbrf.c b/drivers/platform/x86/amd/wbrf.c index 0f58d252b620..dc10d12bc80d 100644 --- a/drivers/platform/x86/amd/wbrf.c +++ b/drivers/platform/x86/amd/wbrf.c @@ -42,8 +42,6 @@ static BLOCKING_NOTIFIER_HEAD(wbrf_chain_head); static int wbrf_record(struct acpi_device *adev, uint8_t action, struct wbrf_ranges_in_out *in) { union acpi_object argv4; - union acpi_object *tmp; - union acpi_object *obj; u32 num_of_ranges = 0; u32 num_of_elements; u32 arg_idx = 0; @@ -74,7 +72,7 @@ static int wbrf_record(struct acpi_device *adev, uint8_t action, struct wbrf_ran */ num_of_elements = 2 * num_of_ranges + 2; - tmp = kcalloc(num_of_elements, sizeof(*tmp), GFP_KERNEL); + union acpi_object *tmp __free(kfree) = kcalloc(num_of_elements, sizeof(*tmp), GFP_KERNEL); if (!tmp) return -ENOMEM; @@ -101,26 +99,19 @@ static int wbrf_record(struct acpi_device *adev, uint8_t action, struct wbrf_ran tmp[arg_idx++].integer.value = in->band_list[i].end; } - obj = acpi_evaluate_dsm(adev->handle, &wifi_acpi_dsm_guid, - WBRF_REVISION, WBRF_RECORD, &argv4); + union acpi_object *obj __free(kfree) = + acpi_evaluate_dsm(adev->handle, &wifi_acpi_dsm_guid, + WBRF_REVISION, WBRF_RECORD, &argv4); - if (!obj) { - kfree(tmp); + if (!obj) return -EINVAL; - } - if (obj->type != ACPI_TYPE_INTEGER) { - ret = -EINVAL; - goto out; - } + if (obj->type != ACPI_TYPE_INTEGER) + return -EINVAL; ret = obj->integer.value; if (ret) - ret = -EINVAL; - -out: - ACPI_FREE(obj); - kfree(tmp); + return -EINVAL; return ret; } |