linux-kernel - [PATCH v1 1/1] platform/x86: intel/pmc: Switch to use acpi_evaluate_dsm

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:   Wed, 18 Jan 2023 11:54:40 +0200
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Hans de Goede <hdegoede@...hat.com>,
        "David E. Box" <david.e.box@...ux.intel.com>,
        Gayatri Kammela <gayatri.kammela@...ux.intel.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        platform-driver-x86@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Rajneesh Bhardwaj <irenic.rajneesh@...il.com>,
        David E Box <david.e.box@...el.com>,
        Mark Gross <markgross@...nel.org>
Subject: [PATCH v1 1/1] platform/x86: intel/pmc: Switch to use acpi_evaluate_dsm_typed()

The acpi_evaluate_dsm_typed() provides a way to check the type of the
object evaluated by _DSM call. Use it instead of open coded variant.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
 drivers/platform/x86/intel/pmc/tgl.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/platform/x86/intel/pmc/tgl.c b/drivers/platform/x86/intel/pmc/tgl.c
index e3e50538465d..c245ada849d0 100644
--- a/drivers/platform/x86/intel/pmc/tgl.c
+++ b/drivers/platform/x86/intel/pmc/tgl.c
@@ -221,9 +221,9 @@ void pmc_core_get_tgl_lpm_reqs(struct platform_device *pdev)
 
 	guid_parse(ACPI_S0IX_DSM_UUID, &s0ix_dsm_guid);
 
-	out_obj = acpi_evaluate_dsm(adev->handle, &s0ix_dsm_guid, 0,
-				    ACPI_GET_LOW_MODE_REGISTERS, NULL);
-	if (out_obj && out_obj->type == ACPI_TYPE_BUFFER) {
+	out_obj = acpi_evaluate_dsm_typed(adev->handle, &s0ix_dsm_guid, 0,
+					  ACPI_GET_LOW_MODE_REGISTERS, NULL, ACPI_TYPE_BUFFER);
+	if (out_obj) {
 		u32 size = out_obj->buffer.length;
 
 		if (size != lpm_size) {
-- 
2.39.0