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ACPI: NFIT: Switch to use acpi_evaluate_dsm_typed()

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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>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Andy Shevchenko 2023-10-02 16:54:58 +03:00 committed by Rafael J. Wysocki
parent 41bccc98fb
commit 26da9a8d27
1 changed files with 2 additions and 3 deletions
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5
drivers/acpi/nfit/core.c
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@ -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);