From 44454bcdb90532b372c74e3546043d8a3a468939 Mon Sep 17 00:00:00 2001 From: Russell King Date: Thu, 30 Jun 2005 22:41:22 +0100 Subject: [PATCH] Serial: Fix small CONFIG_SERIAL_8250_NR_UARTS If CONFIG_SERIAL_8250_NR_UARTS is smaller than the array size in asm/serial.h, we trampled on memory which wasn't ours. Take our big boots away by limiting the number of ports initialised to the smaller of ...NR_UARTS and the array size. Signed-off-by: Russell King --- drivers/serial/8250.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers/serial/8250.c') diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c index 9224fc3184e..7e8fc7c1d4c 100644 --- a/drivers/serial/8250.c +++ b/drivers/serial/8250.c @@ -2061,7 +2061,8 @@ static void __init serial8250_isa_init_ports(void) up->port.ops = &serial8250_pops; } - for (i = 0, up = serial8250_ports; i < ARRAY_SIZE(old_serial_port); + for (i = 0, up = serial8250_ports; + i < ARRAY_SIZE(old_serial_port) && i < UART_NR; i++, up++) { up->port.iobase = old_serial_port[i].port; up->port.irq = irq_canonicalize(old_serial_port[i].irq); -- cgit v1.2.3