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authorÁlvaro Fernández Rojas <noltari@gmail.com>2017-02-07 21:07:54 +0100
committerÁlvaro Fernández Rojas <noltari@gmail.com>2017-02-07 23:00:16 +0100
commit96aa0c6b0b179518e0c228362ea55f1c7793bb3a (patch)
tree3244114239a7bbf380ee9fa76680b55e459e06c0 /target/linux/brcm2708/patches-4.9/0010-serial-8250-Don-t-crash-when-nr_uarts-is-0.patch
parent6b5c3fd055f64ce0f9d111820123caf33632a51f (diff)
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brcm2708: add linux 4.9 support
Patches from Raspberry Pi repo: https://github.com/raspberrypi/linux/commits/rpi-4.9.y Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Diffstat (limited to 'target/linux/brcm2708/patches-4.9/0010-serial-8250-Don-t-crash-when-nr_uarts-is-0.patch')
-rw-r--r--target/linux/brcm2708/patches-4.9/0010-serial-8250-Don-t-crash-when-nr_uarts-is-0.patch20
1 files changed, 20 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.9/0010-serial-8250-Don-t-crash-when-nr_uarts-is-0.patch b/target/linux/brcm2708/patches-4.9/0010-serial-8250-Don-t-crash-when-nr_uarts-is-0.patch
new file mode 100644
index 0000000000..be8e9031cd
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.9/0010-serial-8250-Don-t-crash-when-nr_uarts-is-0.patch
@@ -0,0 +1,20 @@
+From 0059a02a50c6d01a399024cad56ec5254c645fd0 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];