From: Sebastian Ott <sebott@linux.vnet.ibm.com>
Date: Mon, 12 Feb 2018 11:01:03 +0000 (+0100)
Subject: s390/cio: clear timer when terminating driver I/O
X-Git-Tag: v3.18.111~119
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=0ef50f04aae890db9bc01cfc4d7e7fce54e04a27;p=thirdparty%2Fkernel%2Fstable.git

s390/cio: clear timer when terminating driver I/O

[ Upstream commit 410d5e13e7638bc146321671e223d56495fbf3c7 ]

When we terminate driver I/O (because we need to stop using a certain
channel path) we also need to ensure that a timer (which may have been
set up using ccw_device_start_timeout) is cleared.

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/s390/cio/device_fsm.c b/drivers/s390/cio/device_fsm.c
index 600a379727f19..8febd61e1e55c 100644
--- a/drivers/s390/cio/device_fsm.c
+++ b/drivers/s390/cio/device_fsm.c
@@ -885,6 +885,7 @@ void ccw_device_kill_io(struct ccw_device *cdev)
 {
 	int ret;
 
+	ccw_device_set_timeout(cdev, 0);
 	cdev->private->iretry = 255;
 	cdev->private->async_kill_io_rc = -EIO;
 	ret = ccw_device_cancel_halt_clear(cdev);