UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

usb: acpi: 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@linux.intel.com>
Link: https://lore.kernel.org/r/20230310164129.21937-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Andy Shevchenko 2023-03-10 18:41:29 +02:00 committed by Greg Kroah-Hartman
parent f977caea50
commit e13a733306
1 changed files with 4 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
drivers/usb/core/usb-acpi.c
View File

@ -81,15 +81,11 @@ int usb_acpi_port_lpm_incapable(struct usb_device *hdev, int index)
return -ENODEV;
}
obj = acpi_evaluate_dsm(port_handle, &guid, 0,
USB_DSM_DISABLE_U1_U2_FOR_PORT, NULL);
if (!obj)
return -ENODEV;
if (obj->type != ACPI_TYPE_INTEGER) {
obj = acpi_evaluate_dsm_typed(port_handle, &guid, 0,
USB_DSM_DISABLE_U1_U2_FOR_PORT, NULL,
ACPI_TYPE_INTEGER);
if (!obj) {
dev_dbg(&hdev->dev, "evaluate port-%d _DSM failed\n", port1);
ACPI_FREE(obj);
return -EINVAL;
}