Kernel should the decrement reference count of acpi device when
acpi hotplug work scheduling is failed. And, kernel should evaluates
_OST to notify BIOS the failure.
Cc: "Rafael J. Wysocki" <rjw@xxxxxxxxxxxxx>
Cc: Len Brown <lenb@xxxxxxxxxx>
Signed-off-by: "Lee, Chun-Yi" <jlee@xxxxxxxx>
---
drivers/acpi/bus.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 34fbe02..2f2cec9 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -427,8 +427,14 @@ 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)))
- return;
+ if (hotplug_event) {
+ if (ACPI_FAILURE(acpi_hotplug_schedule(adev, type))) {
+ acpi_bus_put_acpi_device(adev);
+ goto err;
+ } else {
+ return;
+ }
+ }
acpi_bus_put_acpi_device(adev);
return;
--
2.10.2
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