diff --git a/net/lapb/Kconfig b/net/lapb/Kconfig
index 6481839..6acfc99 100644
--- a/net/lapb/Kconfig
+++ b/net/lapb/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
 #
 # LAPB Data Link Drive
 #
diff --git a/net/lapb/Makefile b/net/lapb/Makefile
index fff797d..7be91b4 100644
--- a/net/lapb/Makefile
+++ b/net/lapb/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
 #
 # Makefile for the Linux LAPB layer.
 #
diff --git a/net/lapb/lapb_iface.c b/net/lapb/lapb_iface.c
index db6e0af..3c03f65 100644
--- a/net/lapb/lapb_iface.c
+++ b/net/lapb/lapb_iface.c
@@ -1,14 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  *	LAPB release 002
  *
  *	This code REQUIRES 2.1.15 or higher/ NET3.038
  *
- *	This module:
- *		This module is free software; you can redistribute it and/or
- *		modify it under the terms of the GNU General Public License
- *		as published by the Free Software Foundation; either version
- *		2 of the License, or (at your option) any later version.
- *
  *	History
  *	LAPB 001	Jonathan Naylor	Started Coding
  *	LAPB 002	Jonathan Naylor	New timer architecture.
@@ -73,7 +68,6 @@
 		lapb_put(lapb);
 	}
 }
-EXPORT_SYMBOL(lapb_register);
 
 /*
  *	Add a socket to the bound sockets list.
@@ -120,7 +114,6 @@
 {
 	struct lapb_cb *lapb = kzalloc(sizeof(*lapb), GFP_ATOMIC);
 
-
 	if (!lapb)
 		goto out;
 
@@ -172,6 +165,7 @@
 	write_unlock_bh(&lapb_list_lock);
 	return rc;
 }
+EXPORT_SYMBOL(lapb_register);
 
 int lapb_unregister(struct net_device *dev)
 {
@@ -182,6 +176,7 @@
 	lapb = __lapb_devtostruct(dev);
 	if (!lapb)
 		goto out;
+	lapb_put(lapb);
 
 	lapb_stop_t1timer(lapb);
 	lapb_stop_t2timer(lapb);
diff --git a/net/lapb/lapb_in.c b/net/lapb/lapb_in.c
index d5d2110..38ae23c 100644
--- a/net/lapb/lapb_in.c
+++ b/net/lapb/lapb_in.c
@@ -1,14 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  *	LAPB release 002
  *
  *	This code REQUIRES 2.1.15 or higher/ NET3.038
  *
- *	This module:
- *		This module is free software; you can redistribute it and/or
- *		modify it under the terms of the GNU General Public License
- *		as published by the Free Software Foundation; either version
- *		2 of the License, or (at your option) any later version.
- *
  *	History
  *	LAPB 001	Jonathan Naulor	Started Coding
  *	LAPB 002	Jonathan Naylor	New timer architecture.
diff --git a/net/lapb/lapb_out.c b/net/lapb/lapb_out.c
index eda726e..7a4d071 100644
--- a/net/lapb/lapb_out.c
+++ b/net/lapb/lapb_out.c
@@ -1,14 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  *	LAPB release 002
  *
  *	This code REQUIRES 2.1.15 or higher/ NET3.038
  *
- *	This module:
- *		This module is free software; you can redistribute it and/or
- *		modify it under the terms of the GNU General Public License
- *		as published by the Free Software Foundation; either version
- *		2 of the License, or (at your option) any later version.
- *
  *	History
  *	LAPB 001	Jonathan Naylor	Started Coding
  *	LAPB 002	Jonathan Naylor	New timer architecture.
diff --git a/net/lapb/lapb_subr.c b/net/lapb/lapb_subr.c
index 75efde3..592a22d 100644
--- a/net/lapb/lapb_subr.c
+++ b/net/lapb/lapb_subr.c
@@ -1,14 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  *	LAPB release 002
  *
  *	This code REQUIRES 2.1.15 or higher/ NET3.038
  *
- *	This module:
- *		This module is free software; you can redistribute it and/or
- *		modify it under the terms of the GNU General Public License
- *		as published by the Free Software Foundation; either version
- *		2 of the License, or (at your option) any later version.
- *
  *	History
  *	LAPB 001	Jonathan Naylor	Started Coding
  */
diff --git a/net/lapb/lapb_timer.c b/net/lapb/lapb_timer.c
index 5d4ae01..8f5b170 100644
--- a/net/lapb/lapb_timer.c
+++ b/net/lapb/lapb_timer.c
@@ -1,14 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  *	LAPB release 002
  *
  *	This code REQUIRES 2.1.15 or higher/ NET3.038
  *
- *	This module:
- *		This module is free software; you can redistribute it and/or
- *		modify it under the terms of the GNU General Public License
- *		as published by the Free Software Foundation; either version
- *		2 of the License, or (at your option) any later version.
- *
  *	History
  *	LAPB 001	Jonathan Naylor	Started Coding
  *	LAPB 002	Jonathan Naylor	New timer architecture.