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/media/usb/dvb-usb/digitv.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/kernel/drivers/media/usb/dvb-usb/digitv.c b/kernel/drivers/media/usb/dvb-usb/digitv.c
index 4e3b3c0..e56efeb 100644
--- a/kernel/drivers/media/usb/dvb-usb/digitv.c
+++ b/kernel/drivers/media/usb/dvb-usb/digitv.c
@@ -63,6 +63,10 @@
warn("more than 2 i2c messages at a time is not handled yet. TODO.");
for (i = 0; i < num; i++) {
+ if (msg[i].len < 1) {
+ i = -EOPNOTSUPP;
+ break;
+ }
/* write/read request */
if (i+1 < num && (msg[i+1].flags & I2C_M_RD)) {
if (digitv_ctrl_msg(d, USB_READ_COFDM, msg[i].buf[0], NULL, 0,
--
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