From mboxrd@z Thu Jan 1 00:00:00 1970 From: Holger Macht Subject: ACPI: Properly clear flags on false-positives and send uevent on sudden unplug Date: Wed, 6 Aug 2008 17:56:01 +0200 Message-ID: <20080806155601.GA4243@homac.suse.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from cantor2.suse.de ([195.135.220.15]:32828 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755746AbYHFP4E (ORCPT ); Wed, 6 Aug 2008 11:56:04 -0400 Content-Disposition: inline Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: linux-acpi@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Greg KH , Len Brown , ak@linux.intel.com 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 --- 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);