ACPI / PM: Register acpi_power_driver early
The ACPI device driver used for handling power resources, acpi_power_driver, creates a struct acpi_power_resource object for each ACPI device representing a power resource. These objects are then used when setting and reading the power states of devices using the corresponding power resources. Unfortunately, acpi_power_driver is registered after acpi_scan_init() that may add devices using the power resources before acpi_power_driver has a chance to create struct acpi_power_resource objects for them (specifically, the power resources may be referred to during the scanning process through acpi_bus_get_power() before they have been initialized). As the first step towards fixing this issue, move the registration of acpi_power_driver into acpi_scan_init() so that power resource devices can be initialized by it as soon as they have been found in the namespace. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
parent
25eed40720
commit
97d9a9e9f5
|
@ -1099,7 +1099,6 @@ static int __init acpi_init(void)
|
|||
|
||||
acpi_scan_init();
|
||||
acpi_ec_init();
|
||||
acpi_power_init();
|
||||
acpi_debugfs_init();
|
||||
acpi_sleep_proc_init();
|
||||
acpi_wakeup_device_init();
|
||||
|
|
|
@ -1570,6 +1570,8 @@ int __init acpi_scan_init(void)
|
|||
printk(KERN_ERR PREFIX "Could not register bus type\n");
|
||||
}
|
||||
|
||||
acpi_power_init();
|
||||
|
||||
/*
|
||||
* Enumerate devices in the ACPI namespace.
|
||||
*/
|
||||
|
|
Loading…
Reference in a new issue