[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Message-Id: <20231002135218.2602969-1-andriy.shevchenko@linux.intel.com>
Date: Mon, 2 Oct 2023 16:52:18 +0300
From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To: "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
Mario Limonciello <mario.limonciello@....com>,
linux-acpi@...r.kernel.org, linux-kernel@...r.kernel.org
Cc: "Rafael J. Wysocki" <rafael@...nel.org>,
Len Brown <lenb@...nel.org>,
Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Subject: [PATCH v1 1/1] ACPI: x86: s2idle: 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/acpi/x86/s2idle.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/acpi/x86/s2idle.c b/drivers/acpi/x86/s2idle.c
index 08f7c6708206..7d64e655f1b8 100644
--- a/drivers/acpi/x86/s2idle.c
+++ b/drivers/acpi/x86/s2idle.c
@@ -417,11 +417,10 @@ static int validate_dsm(acpi_handle handle, const char *uuid, int rev, guid_t *d
int ret = -EINVAL;
guid_parse(uuid, dsm_guid);
- obj = acpi_evaluate_dsm(handle, dsm_guid, rev, 0, NULL);
/* Check if the _DSM is present and as expected. */
- if (!obj || obj->type != ACPI_TYPE_BUFFER || obj->buffer.length == 0 ||
- obj->buffer.length > sizeof(u32)) {
+ obj = acpi_evaluate_dsm_typed(handle, dsm_guid, rev, 0, NULL, ACPI_TYPE_BUFFER);
+ if (!obj || obj->buffer.length == 0 || obj->buffer.length > sizeof(u32)) {
acpi_handle_debug(handle,
"_DSM UUID %s rev %d function 0 evaluation failed\n", uuid, rev);
goto out;
--
2.40.0.1.gaa8946217a0b
Powered by blists - more mailing lists