From: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Date: Tue, 12 Nov 2013 14:03:37 +0000 (+0100)
Subject: s390/3270: fix missing device_destroy() call
X-Git-Tag: submit/tizen_common/20140905.094502~487
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=c1b73028e93c7a9217ad75ed75a7fe167606054d;p=sdk%2Femulator%2Femulator-kernel.git

s390/3270: fix missing device_destroy() call

commit d1e61fe49fd450be15d402ac353784f5ba8a624e upstream.

Unloading the fs3270 kernel module does not remove the created
"3270/tub" device.  Reloading the module then causes a sysfs warning:
"sysfs: cannot create duplicate filename '/devices/virtual/3270/3270!tub'".

Call device_destroy() in the module exit function to solve this issue.

Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
---

diff --git a/drivers/s390/char/fs3270.c b/drivers/s390/char/fs3270.c
index f93cc32eb818..71e974738014 100644
--- a/drivers/s390/char/fs3270.c
+++ b/drivers/s390/char/fs3270.c
@@ -564,6 +564,7 @@ static void __exit
 fs3270_exit(void)
 {
 	raw3270_unregister_notifier(&fs3270_notifier);
+	device_destroy(class3270, MKDEV(IBM_FS3270_MAJOR, 0));
 	__unregister_chrdev(IBM_FS3270_MAJOR, 0, 1, "fs3270");
 }