diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.9/950-0010-serial-8250-Don-t-crash-when-nr_uarts-is-0.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.9/950-0010-serial-8250-Don-t-crash-when-nr_uarts-is-0.patch | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.9/950-0010-serial-8250-Don-t-crash-when-nr_uarts-is-0.patch b/target/linux/brcm2708/patches-4.9/950-0010-serial-8250-Don-t-crash-when-nr_uarts-is-0.patch new file mode 100644 index 0000000000..447f1ce085 --- /dev/null +++ b/target/linux/brcm2708/patches-4.9/950-0010-serial-8250-Don-t-crash-when-nr_uarts-is-0.patch @@ -0,0 +1,20 @@ +From cc016c1876877aa42a84cc9c0c89af1b7410ff67 Mon Sep 17 00:00:00 2001 +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]; |