diff options
| author | Aleksey Makarov <aleksey.makarov@linaro.org> | 2016-02-16 15:52:38 +0300 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2016-02-16 19:56:28 +0100 |
| commit | 3b95bd160547f56a68aeb972c33ae9511e7a8380 (patch) | |
| tree | 2aee4b0afd45b60ccde072b85be3e2298f034f35 /drivers/acpi/acpi_platform.c | |
| parent | 18558cae0272f8fd9647e69d3fec1565a7949865 (diff) | |
ACPI: introduce a function to find the first physical device
Factor out the code that finds the first physical device
of a given ACPI device. It is used in several places.
Signed-off-by: Aleksey Makarov <aleksey.makarov@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi/acpi_platform.c')
| -rw-r--r-- | drivers/acpi/acpi_platform.c | 19 |
1 files changed, 2 insertions, 17 deletions
diff --git a/drivers/acpi/acpi_platform.c b/drivers/acpi/acpi_platform.c index 296b7a14893a..c3af1088bf6b 100644 --- a/drivers/acpi/acpi_platform.c +++ b/drivers/acpi/acpi_platform.c @@ -43,7 +43,6 @@ static const struct acpi_device_id forbidden_id_list[] = { struct platform_device *acpi_create_platform_device(struct acpi_device *adev) { struct platform_device *pdev = NULL; - struct acpi_device *acpi_parent; struct platform_device_info pdevinfo; struct resource_entry *rentry; struct list_head resource_list; @@ -82,22 +81,8 @@ struct platform_device *acpi_create_platform_device(struct acpi_device *adev) * attached to it, that physical device should be the parent of the * platform device we are about to create. */ - pdevinfo.parent = NULL; - acpi_parent = adev->parent; - if (acpi_parent) { - struct acpi_device_physical_node *entry; - struct list_head *list; - - mutex_lock(&acpi_parent->physical_node_lock); - list = &acpi_parent->physical_node_list; - if (!list_empty(list)) { - entry = list_first_entry(list, - struct acpi_device_physical_node, - node); - pdevinfo.parent = entry->dev; - } - mutex_unlock(&acpi_parent->physical_node_lock); - } + pdevinfo.parent = adev->parent ? + acpi_get_first_physical_node(adev->parent) : NULL; pdevinfo.name = dev_name(&adev->dev); pdevinfo.id = -1; pdevinfo.res = resources; |