[PATCH v1 1/1] ACPI: NFIT: Switch to use acpi_evaluate_dsm_typed()

From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Michal Wilczynski <michal.wilczynski@intel.com>,
	nvdimm@lists.linux.dev, linux-acpi@vger.kernel.org,
	linux-kernel@vger.kernel.org
Cc: Dan Williams <dan.j.williams@intel.com>,
	Vishal Verma <vishal.l.verma@intel.com>,
	Dave Jiang <dave.jiang@intel.com>,
	Ira Weiny <ira.weiny@intel.com>,
	"Rafael J. Wysocki" <rafael@kernel.org>,
	Len Brown <lenb@kernel.org>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Subject: [PATCH v1 1/1] ACPI: NFIT: Switch to use acpi_evaluate_dsm_typed()
Date: Mon,  2 Oct 2023 16:54:58 +0300	[thread overview]
Message-ID: <20231002135458.2603293-1-andriy.shevchenko@linux.intel.com> (raw)

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@linux.intel.com>
---
 drivers/acpi/nfit/core.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c
index f96bf32cd368..280da408c02c 100644
--- a/drivers/acpi/nfit/core.c
+++ b/drivers/acpi/nfit/core.c
@@ -1737,9 +1737,8 @@ __weak void nfit_intel_shutdown_status(struct nfit_mem *nfit_mem)
 	if ((nfit_mem->dsm_mask & (1 << func)) == 0)
 		return;
 
-	out_obj = acpi_evaluate_dsm(handle, guid, revid, func, &in_obj);
-	if (!out_obj || out_obj->type != ACPI_TYPE_BUFFER
-			|| out_obj->buffer.length < sizeof(smart)) {
+	out_obj = acpi_evaluate_dsm_typed(handle, guid, revid, func, &in_obj, ACPI_TYPE_BUFFER);
+	if (!out_obj || out_obj->buffer.length < sizeof(smart)) {
 		dev_dbg(dev->parent, "%s: failed to retrieve initial health\n",
 				dev_name(dev));
 		ACPI_FREE(out_obj);
-- 
2.40.0.1.gaa8946217a0b

