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/video/fbdev/nvidia/nvidia.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/kernel/drivers/video/fbdev/nvidia/nvidia.c b/kernel/drivers/video/fbdev/nvidia/nvidia.c
index a372a18..f9c388a 100644
--- a/kernel/drivers/video/fbdev/nvidia/nvidia.c
+++ b/kernel/drivers/video/fbdev/nvidia/nvidia.c
@@ -763,6 +763,8 @@
 	int pitch, err = 0;
 
 	NVTRACE_ENTER();
+	if (!var->pixclock)
+		return -EINVAL;
 
 	var->transp.offset = 0;
 	var->transp.length = 0;

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