From: Holger Macht <hmacht@suse.de>
Date: Wed, 12 Mar 2008 00:07:27 +0000 (+0100)
Subject: ACPI: Set flag DOCK_UNDOCKING when triggered via sysfs
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=9171f83488940e4ff85f1b7137773eb1f306cdef;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

ACPI: Set flag DOCK_UNDOCKING when triggered via sysfs

begin_undock() is only called when triggered via a acpi notify handler
(pressing the undock button on the dock station), but complete_undock() is
always called after the eject. So if a undock is triggered through a sysfs
write, the flag DOCK_UNDOCKING has to be set for the dock station,
too. Otherwise this will freeze the system hard.

Signed-off-by: Holger Macht <hmacht@suse.de>
Acked-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>
---

diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c
index 307cef65c247..fa44fb96fc34 100644
--- a/drivers/acpi/dock.c
+++ b/drivers/acpi/dock.c
@@ -710,6 +710,7 @@ static ssize_t write_undock(struct device *dev, struct device_attribute *attr,
 	if (!count)
 		return -EINVAL;
 
+	begin_undock(dock_station);
 	ret = handle_eject_request(dock_station, ACPI_NOTIFY_EJECT_REQUEST);
 	return ret ? ret: count;
 }