Some devices emit a ACPI_NOTIFY_DEVICE_CHECK while physically unplugging
even if the software undock has already been done and dock_present() check
fails. However, the internal flags need to be cleared (complete_undock()).
Also, even notify userspace if the dock station suddently went away
without proper software undocking.
Signed-off-by: Holger Macht <hmacht@xxxxxxx>
---
diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c
index bb7c51f..7d2edf1 100644
--- a/drivers/acpi/dock.c
+++ b/drivers/acpi/dock.c
@@ -563,9 +563,6 @@ EXPORT_SYMBOL_GPL(unregister_hotplug_dock_device);
*/
static int handle_eject_request(struct dock_station *ds, u32 event)
{
- if (!dock_present(ds))
- return -ENODEV;
-
if (dock_in_progress(ds))
return -EBUSY;
@@ -573,8 +570,16 @@ static int handle_eject_request(struct dock_station *ds, u32 event)
* here we need to generate the undock
* event prior to actually doing the undock
* so that the device struct still exists.
+ * Also, even send the dock event if the
+ * device is not present anymore
*/
dock_event(ds, event, UNDOCK_EVENT);
+
+ if (!dock_present(ds)) {
+ complete_undock(ds);
+ return -ENODEV;
+ }
+
hotplug_dock_devices(ds, ACPI_NOTIFY_EJECT_REQUEST);
undock(ds);
eject_dock(ds);
--
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