diff options
| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2013-08-27 01:29:04 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2013-08-27 01:29:04 +0200 |
| commit | 0c581415b522267138d807814e526aa7534b9a61 (patch) | |
| tree | b41d215210f59ace2ae62b3ee3db1ccf90599a0a /drivers/acpi/scan.c | |
| parent | afdca01c9821134e71011029a194dd8fcb88c97e (diff) | |
| parent | 7702ae0dd9b40930931914866999a2ac9734d3eb (diff) | |
Merge branch 'acpi-assorted'
* acpi-assorted:
ACPI / osl: Kill macro INVALID_TABLE().
earlycpio.c: Fix the confusing comment of find_cpio_data().
ACPI / x86: Print Hot-Pluggable Field in SRAT.
ACPI / thermal: Use THERMAL_TRIPS_NONE macro to replace number
ACPI / thermal: Remove unused macros in the driver/acpi/thermal.c
ACPI / thermal: Remove the unused lock of struct acpi_thermal
ACPI / osl: Fix osi_setup_entries[] __initdata attribute location
ACPI / numa: Fix __init attribute location in slit_valid()
ACPI / dock: Fix __init attribute location in find_dock_and_bay()
ACPI / Sleep: Fix incorrect placement of __initdata
ACPI / processor: Fix incorrect placement of __initdata
ACPI / EC: Fix incorrect placement of __initdata
ACPI / scan: Drop unnecessary label from acpi_create_platform_device()
ACPI: Move acpi_bus_get_device() from bus.c to scan.c
ACPI / scan: Allow platform device creation without any IO resources
ACPI: Cleanup sparse warning on acpi_os_initialize1()
platform / thinkpad: Remove deprecated hotkey_report_mode parameter
ACPI: Remove the old /proc/acpi/event interface
Diffstat (limited to 'drivers/acpi/scan.c')
| -rw-r--r-- | drivers/acpi/scan.c | 30 |
1 files changed, 22 insertions, 8 deletions
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index a8a55d4143f2..e76365136ba3 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -970,6 +970,28 @@ struct bus_type acpi_bus_type = { .uevent = acpi_device_uevent, }; +static void acpi_bus_data_handler(acpi_handle handle, void *context) +{ + /* Intentionally empty. */ +} + +int acpi_bus_get_device(acpi_handle handle, struct acpi_device **device) +{ + acpi_status status; + + if (!device) + return -EINVAL; + + status = acpi_get_data(handle, acpi_bus_data_handler, (void **)device); + if (ACPI_FAILURE(status) || !*device) { + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No context for object [%p]\n", + handle)); + return -ENODEV; + } + return 0; +} +EXPORT_SYMBOL_GPL(acpi_bus_get_device); + int acpi_device_add(struct acpi_device *device, void (*release)(struct device *)) { @@ -1181,14 +1203,6 @@ acpi_bus_get_ejd(acpi_handle handle, acpi_handle *ejd) } EXPORT_SYMBOL_GPL(acpi_bus_get_ejd); -void acpi_bus_data_handler(acpi_handle handle, void *context) -{ - - /* TBD */ - - return; -} - static int acpi_bus_extract_wakeup_device_power_package(acpi_handle handle, struct acpi_device_wakeup *wakeup) { |