From 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 22 Oct 2024 10:36:11 +0000
Subject: [PATCH] 修改4g拨号为QMI,需要在系统里后台执行quectel-CM

---
 kernel/drivers/net/hamradio/hdlcdrv.c |   20 ++------------------
 1 files changed, 2 insertions(+), 18 deletions(-)

diff --git a/kernel/drivers/net/hamradio/hdlcdrv.c b/kernel/drivers/net/hamradio/hdlcdrv.c
index 97e3bc6..e7413a6 100644
--- a/kernel/drivers/net/hamradio/hdlcdrv.c
+++ b/kernel/drivers/net/hamradio/hdlcdrv.c
@@ -1,23 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*****************************************************************************/
 
 /*
  *	hdlcdrv.c  -- HDLC packet radio network driver.
  *
  *	Copyright (C) 1996-2000  Thomas Sailer (sailer@ife.ee.ethz.ch)
- *
- *	This program 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.
- *
- *	This program is distributed in the hope that it will be useful,
- *	but WITHOUT ANY WARRANTY; without even the implied warranty of
- *	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *	GNU General Public License for more details.
- *
- *	You should have received a copy of the GNU General Public License
- *	along with this program; if not, write to the Free Software
- *	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  *
  *  Please note that the GPL allows you to use the driver, NOT the radio.
  *  In order to use the radio, you need a license from the communications
@@ -488,8 +475,7 @@
 
 	if (s->ops && s->ops->close)
 		i = s->ops->close(dev);
-	if (s->skb)
-		dev_kfree_skb(s->skb);
+	dev_kfree_skb(s->skb);
 	s->skb = NULL;
 	s->opened = 0;
 	return i;
@@ -700,8 +686,6 @@
 	struct net_device *dev;
 	struct hdlcdrv_state *s;
 	int err;
-
-	BUG_ON(ops == NULL);
 
 	if (privsize < sizeof(struct hdlcdrv_state))
 		privsize = sizeof(struct hdlcdrv_state);

--
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