0008-serial-8250-Don-t-crash-when-nr_uarts-is-0.patch 609 B

1234567891011121314151617181920
  1. From f17d5198c547b208379e523bf400e55cef88ff56 Mon Sep 17 00:00:00 2001
  2. From: Phil Elwell <phil@raspberrypi.org>
  3. Date: Tue, 30 Jun 2015 14:12:42 +0100
  4. Subject: [PATCH] serial: 8250: Don't crash when nr_uarts is 0
  5. ---
  6. drivers/tty/serial/8250/8250_core.c | 2 ++
  7. 1 file changed, 2 insertions(+)
  8. --- a/drivers/tty/serial/8250/8250_core.c
  9. +++ b/drivers/tty/serial/8250/8250_core.c
  10. @@ -509,6 +509,8 @@ static void __init serial8250_isa_init_p
  11. if (nr_uarts > UART_NR)
  12. nr_uarts = UART_NR;
  13. + if (!nr_uarts)
  14. + return;
  15. for (i = 0; i < nr_uarts; i++) {
  16. struct uart_8250_port *up = &serial8250_ports[i];