diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/acpi/glue.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/acpi/glue.c b/drivers/acpi/glue.c index 552d82dfa476..5203a7c60daa 100644 --- a/drivers/acpi/glue.c +++ b/drivers/acpi/glue.c @@ -77,12 +77,22 @@ static struct acpi_bus_type *acpi_get_bus_type(struct device *dev) #define FIND_CHILD_MIN_SCORE 1 #define FIND_CHILD_MAX_SCORE 2 +static int match_any(struct acpi_device *adev, void *not_used) +{ + return 1; +} + +static bool acpi_dev_has_children(struct acpi_device *adev) +{ + return acpi_dev_for_each_child(adev, match_any, NULL) > 0; +} + static int find_child_checks(struct acpi_device *adev, bool check_children) { unsigned long long sta; acpi_status status; - if (check_children && list_empty(&adev->children)) + if (check_children && !acpi_dev_has_children(adev)) return -ENODEV; status = acpi_evaluate_integer(adev->handle, "_STA", NULL, &sta); |