ACPI: Verify device status after eject (882fd12e) · Commits · 戴 / test

drivers/acpi/scan.c

+17 −1

Original line number	Original line	Diff line number	Diff line
	@@ -127,6 +127,7 @@ static int acpi_scan_hot_remove(struct acpi_device *device)
	struct acpi_object_list arg_list;		struct acpi_object_list arg_list;
	union acpi_object arg;		union acpi_object arg;
	acpi_status status;		acpi_status status;
			unsigned long long sta;

	/* If there is no handle, the device node has been unregistered. */		/* If there is no handle, the device node has been unregistered. */
	if (!handle) {		if (!handle) {
	@@ -164,10 +165,25 @@ static int acpi_scan_hot_remove(struct acpi_device *device)
	if (status == AE_NOT_FOUND) {		if (status == AE_NOT_FOUND) {
	return -ENODEV;		return -ENODEV;
	} else {		} else {
	acpi_handle_warn(handle, "Eject failed\n");		acpi_handle_warn(handle, "Eject failed (0x%x)\n",
			status);
	return -EIO;		return -EIO;
	}		}
	}		}

			/*
			* Verify if eject was indeed successful. If not, log an error
			* message. No need to call _OST since _EJ0 call was made OK.
			*/
			status = acpi_evaluate_integer(handle, "_STA", NULL, &sta);
			if (ACPI_FAILURE(status)) {
			acpi_handle_warn(handle,
			"Status check after eject failed (0x%x)\n", status);
			} else if (sta & ACPI_STA_DEVICE_ENABLED) {
			acpi_handle_warn(handle,
			"Eject incomplete - status 0x%llx\n", sta);
			}

	return 0;		return 0;
	}		}