diff options
| author |   Lee, Chun-Yi <joeyli.kernel@gmail.com> | 2017-06-30 15:25:38 +0800 |
|---|---|---|
| committer |   Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2017-07-04 21:38:53 +0200 |
| commit | 9a4d8d60df3bc26236fa9cc3bc806ff99e5e5625 (patch) | |
| tree | 1289b1cfc6ab2214fae1f636f66bf463047d50d9 /drivers/acpi/bus.c | |
| parent | Linux 4.12 (diff) | |
| download | linux-dev-9a4d8d60df3bc26236fa9cc3bc806ff99e5e5625.tar.xz linux-dev-9a4d8d60df3bc26236fa9cc3bc806ff99e5e5625.zip | |
ACPI / bus: handle ACPI hotplug schedule errors completely
Kernel should decrements the reference count of ACPI device
when the scheduling of ACPI hotplug work failed, and evaluates
_OST to notify BIOS the failure.
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: "Lee, Chun-Yi" <jlee@suse.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to '')
| -rw-r--r-- | drivers/acpi/bus.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index 784bda663d16..9d4fea6433f5 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -432,11 +432,15 @@ static void acpi_bus_notify(acpi_handle handle, u32 type, void *data) (driver->flags & ACPI_DRIVER_ALL_NOTIFY_EVENTS)) driver->ops.notify(adev, type); - if (hotplug_event && ACPI_SUCCESS(acpi_hotplug_schedule(adev, type))) + if (!hotplug_event) { + acpi_bus_put_acpi_device(adev); + return; + } + + if (ACPI_SUCCESS(acpi_hotplug_schedule(adev, type))) return; acpi_bus_put_acpi_device(adev); - return; err: acpi_evaluate_ost(handle, type, ost_code, NULL); |