diff options
Diffstat (limited to 'drivers/acpi/scan.c')
-rw-r--r-- | drivers/acpi/scan.c | 35 |
1 files changed, 17 insertions, 18 deletions
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index 1510afa7094d..bcbf0fc215c8 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -578,29 +578,31 @@ static void acpi_scan_drop_device(acpi_handle handle, void *context) mutex_unlock(&acpi_device_del_lock); } -static int acpi_get_device_data(acpi_handle handle, struct acpi_device **device, - void (*callback)(void *)) +static struct acpi_device *handle_to_device(acpi_handle handle, + void (*callback)(void *)) { + struct acpi_device *adev = NULL; acpi_status status; - if (!device) - return -EINVAL; - - *device = NULL; - status = acpi_get_data_full(handle, acpi_scan_drop_device, - (void **)device, callback); - if (ACPI_FAILURE(status) || !*device) { - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No context for object [%p]\n", - handle)); - return -ENODEV; + (void **)&adev, callback); + if (ACPI_FAILURE(status) || !adev) { + acpi_handle_debug(handle, "No context!\n"); + return NULL; } - return 0; + return adev; } int acpi_bus_get_device(acpi_handle handle, struct acpi_device **device) { - return acpi_get_device_data(handle, device, NULL); + if (!device) + return -EINVAL; + + *device = handle_to_device(handle, NULL); + if (!*device) + return -ENODEV; + + return 0; } EXPORT_SYMBOL(acpi_bus_get_device); @@ -612,10 +614,7 @@ static void get_acpi_device(void *dev) struct acpi_device *acpi_bus_get_acpi_device(acpi_handle handle) { - struct acpi_device *adev = NULL; - - acpi_get_device_data(handle, &adev, get_acpi_device); - return adev; + return handle_to_device(handle, get_acpi_device); } void acpi_bus_put_acpi_device(struct acpi_device *adev) |