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/net/mac80211/driver-ops.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/kernel/net/mac80211/driver-ops.c b/kernel/net/mac80211/driver-ops.c
index 48322e4..120bd9c 100644
--- a/kernel/net/mac80211/driver-ops.c
+++ b/kernel/net/mac80211/driver-ops.c
@@ -331,6 +331,9 @@
 
 	might_sleep();
 
+	if (!sdata)
+		return -EIO;
+
 	sdata = get_bss_sdata(sdata);
 	if (!check_sdata_in_driver(sdata))
 		return -EIO;

--
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