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

From: Andy Shevchenko
Date: Mon Oct 02 2023 - 09:55:20 EST


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@xxxxxxxxxxxxxxx>
---
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