From 0eebed8f469a4f3bbc8e07f3a46dbbff13702be3 Mon Sep 17 00:00:00 2001
From: Zoran Stojsavljevic <zoran.stojsavljevic@gmail.com>
Date: Sat, 12 Sep 2020 08:53:03 +0200
Subject: [PATCH] [FIX - fatal bug in
 driver]...exploringBB/extras/kernel/ebbchar/ebbchar.ko crashes kernel
 https://github.com/derekmolloy/exploringBB/issues/23

---
 extras/kernel/ebbchar/ebbchar.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/extras/kernel/ebbchar/ebbchar.c b/extras/kernel/ebbchar/ebbchar.c
index 771b859..6bafe9c 100644
--- a/extras/kernel/ebbchar/ebbchar.c
+++ b/extras/kernel/ebbchar/ebbchar.c
@@ -93,7 +93,6 @@ static int __init ebbchar_init(void){
  */
 static void __exit ebbchar_exit(void){
    device_destroy(ebbcharClass, MKDEV(majorNumber, 0));     // remove the device
-   class_unregister(ebbcharClass);                          // unregister the device class
    class_destroy(ebbcharClass);                             // remove the device class
    unregister_chrdev(majorNumber, DEVICE_NAME);             // unregister the major number
    printk(KERN_INFO "EBBChar: Goodbye from the LKM!\n");