2017-03-04 18:37:50 +00:00
|
|
|
From cc016c1876877aa42a84cc9c0c89af1b7410ff67 Mon Sep 17 00:00:00 2001
|
2017-02-07 20:07:54 +00:00
|
|
|
From: Phil Elwell <phil@raspberrypi.org>
|
|
|
|
|
Date: Tue, 30 Jun 2015 14:12:42 +0100
|
|
|
|
|
Subject: [PATCH] serial: 8250: Don't crash when nr_uarts is 0
|
|
|
|
|
|
|
|
|
|
---
|
|
|
|
|
drivers/tty/serial/8250/8250_core.c | 2 ++
|
|
|
|
|
1 file changed, 2 insertions(+)
|
|
|
|
|
|
|
|
|
|
--- a/drivers/tty/serial/8250/8250_core.c
|
|
|
|
|
+++ b/drivers/tty/serial/8250/8250_core.c
|
|
|
|
|
@@ -509,6 +509,8 @@ static void __init serial8250_isa_init_p
|
|
|
|
|
|
|
|
|
|
if (nr_uarts > UART_NR)
|
|
|
|
|
nr_uarts = UART_NR;
|
|
|
|
|
+ if (!nr_uarts)
|
|
|
|
|
+ return;
|
|
|
|
|
|
|
|
|
|
for (i = 0; i < nr_uarts; i++) {
|
|
|
|
|
struct uart_8250_port *up = &serial8250_ports[i];
|
