HID: roccat: Fix NULL pointer dereference when unloading module

Class was destroyed before starting the unregistering driver chain.
Disconnecting a device from roccat chardev in this process then
raised a NULL pointer dereference.
Fixed this by destroying class after unregistering driver.

Signed-off-by: Stefan Achatz <erazor_de@users.sourceforge.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/hid/hid-roccat-koneplus.c b/drivers/hid/hid-roccat-koneplus.c
index 7367e4edfa6c..ac2010732495 100644
--- a/drivers/hid/hid-roccat-koneplus.c
+++ b/drivers/hid/hid-roccat-koneplus.c
@@ -774,8 +774,8 @@ static int __init koneplus_init(void)
 
 static void __exit koneplus_exit(void)
 {
-        class_destroy(koneplus_class);
         hid_unregister_driver(&koneplus_driver);
+        class_destroy(koneplus_class);
 }
 
 module_init(koneplus_init);