修改4g拨号为QMI,需要在系统里后台执行quectel-CM

hc

2024-10-22 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5

 kernel/drivers/tty/tty_jobctrl.c
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@@ -11,6 +11,7 @@
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 #include <linux/tty.h>
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 #include <linux/fcntl.h>
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 #include <linux/uaccess.h>
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+#include "tty.h"
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 static int is_ignored(int sig)
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 {
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@@ -44,7 +45,7 @@
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 	tty_pgrp = tty->pgrp;
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 	spin_unlock_irqrestore(&tty->ctrl_lock, flags);
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-	if (tty_pgrp && pgrp != tty->pgrp) {
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+	if (tty_pgrp && pgrp != tty_pgrp) {
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 		if (is_ignored(sig)) {
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 			if (sig == SIGTTIN)
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 				ret = -EIO;
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@@ -178,8 +179,8 @@
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 /**
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  *	tty_signal_session_leader	- sends SIGHUP to session leader
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- *	@tty		controlling tty
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- *	@exit_session	if non-zero, signal all foreground group processes
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+ *	@tty: controlling tty
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+ *	@exit_session: if non-zero, signal all foreground group processes
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  *
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  *	Send SIGHUP and SIGCONT to the session leader and its process group.
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  *	Optionally, signal all processes in the foreground process group.
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@@ -316,7 +317,7 @@
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 	read_unlock(&tasklist_lock);
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 }
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-/**
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+/*
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  *
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  *	no_tty	- Ensure the current process does not have a controlling tty
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  */