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ACPI: scan: Call acpi_get_object_info() from acpi_set_pnp_ids() 

Notice that it is not necessary to call acpi_get_object_info() from
acpi_add_single_object() in order to pass the pointer returned by it
to acpi_init_device_object() and from there to acpi_set_pnp_ids().

It is more straightforward to call acpi_get_object_info() from
acpi_set_pnp_ids() and avoid unnecessary pointer passing, so change
the code accordingly.

No intentional functional impact.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
This commit is contained in:
Rafael J. Wysocki 2021-04-07 16:33:38 +02:00
parent f5d9ab1d80
commit c830dbcfcc
3 changed files with 11 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/acpi/internal.h
View File

@ -109,7 +109,7 @@ struct acpi_device_bus_id {
int acpi_device_add(struct acpi_device *device,
void (*release)(struct device *));
void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
int type, struct acpi_device_info *info);
int type);
int acpi_device_setup_files(struct acpi_device *dev);
void acpi_device_remove_files(struct acpi_device *dev);
void acpi_device_add_finalize(struct acpi_device *device);

2
drivers/acpi/power.c
View File

@ -925,7 +925,7 @@ int acpi_add_power_resource(acpi_handle handle)
return -ENOMEM;
device = &resource->device;
acpi_init_device_object(device, handle, ACPI_BUS_TYPE_POWER, NULL);
acpi_init_device_object(device, handle, ACPI_BUS_TYPE_POWER);
mutex_init(&resource->resource_lock);
INIT_LIST_HEAD(&resource->list_node);
INIT_LIST_HEAD(&resource->dependents);

21
drivers/acpi/scan.c
View File

@ -1307,8 +1307,9 @@ static bool acpi_object_is_system_bus(acpi_handle handle)
}
static void acpi_set_pnp_ids(acpi_handle handle, struct acpi_device_pnp *pnp,
int device_type, struct acpi_device_info *info)
int device_type)
{
struct acpi_device_info *info = NULL;
struct acpi_pnp_device_id_list *cid_list;
int i;
@ -1319,6 +1320,7 @@ static void acpi_set_pnp_ids(acpi_handle handle, struct acpi_device_pnp *pnp,
break;
}
acpi_get_object_info(handle, &info);
if (!info) {
pr_err(PREFIX "%s: Error reading device info\n",
__func__);
@ -1344,6 +1346,8 @@ static void acpi_set_pnp_ids(acpi_handle handle, struct acpi_device_pnp *pnp,
if (info->valid & ACPI_VALID_CLS)
acpi_add_id(pnp, info->class_code.string);
kfree(info);
/*
* Some devices don't reliably have _HIDs & _CIDs, so add
* synthetic HIDs to make sure drivers can find them.
@ -1649,7 +1653,7 @@ static bool acpi_device_enumeration_by_parent(struct acpi_device *device)
}
void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
int type, struct acpi_device_info *info)
int type)
{
INIT_LIST_HEAD(&device->pnp.ids);
device->device_type = type;
@ -1658,7 +1662,7 @@ void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
fwnode_init(&device->fwnode, &acpi_device_fwnode_ops);
acpi_set_device_status(device, ACPI_STA_DEFAULT);
acpi_device_get_busid(device);
acpi_set_pnp_ids(handle, &device->pnp, type, info);
acpi_set_pnp_ids(handle, &device->pnp, type);
acpi_init_properties(device);
acpi_bus_get_flags(device);
device->flags.match_driver = false;
@ -1688,21 +1692,14 @@ static void acpi_scan_init_status(struct acpi_device *adev)
static int acpi_add_single_object(struct acpi_device **child,
acpi_handle handle, int type)
{
struct acpi_device_info *info = NULL;
struct acpi_device *device;
int result;
if (type == ACPI_BUS_TYPE_DEVICE && handle != ACPI_ROOT_OBJECT)
acpi_get_object_info(handle, &info);
device = kzalloc(sizeof(struct acpi_device), GFP_KERNEL);
if (!device) {
kfree(info);
if (!device)
return -ENOMEM;
}
acpi_init_device_object(device, handle, type, info);
kfree(info);
acpi_init_device_object(device, handle, type);
/*
* Getting the status is delayed till here so that we can call
* acpi_bus_get_status() and use its quirk handling. Note that