queue-3.18/serial-uartps-console_setup-can-t-be-placed-to-init-.patch

   1 From 4d7e5064d7f8e934f853c557dba14fb20ae7661a Mon Sep 17 00:00:00 2001
   2 From: Michal Simek <michal.simek@xilinx.com>
   3 Date: Mon, 3 Sep 2018 15:10:49 +0200
   4 Subject: serial: uartps: console_setup() can't be placed to init section
   5
   6 [ Upstream commit 4bb1ce2350a598502b23088b169e16b43d4bc639 ]
   7
   8 When console device is rebinded, console_setup() is called again.
   9 But marking it as __init means that function will be clear after boot is
  10 complete. If console device is binded again console_setup() is not found
  11 and error "Unable to handle kernel paging request at virtual address"
  12 is reported.
  13
  14 Signed-off-by: Michal Simek <michal.simek@xilinx.com>
  15 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
  16 Signed-off-by: Sasha Levin <sashal@kernel.org>
  17 ---
  18  drivers/tty/serial/xilinx_uartps.c | 2 +-
  19  1 file changed, 1 insertion(+), 1 deletion(-)
  20
  21 diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c
  22 index df28ef14382b..892446cc28fa 100644
  23 --- a/drivers/tty/serial/xilinx_uartps.c
  24 +++ b/drivers/tty/serial/xilinx_uartps.c
  25 @@ -1120,7 +1120,7 @@ static void cdns_uart_console_write(struct console *co, const char *s,
  26   *
  27   * Return: 0 on success, negative errno otherwise.
  28   */
  29 -static int __init cdns_uart_console_setup(struct console *co, char *options)
  30 +static int cdns_uart_console_setup(struct console *co, char *options)
  31  {
  32         struct uart_port *port = &cdns_uart_port[co->index];
  33         int baud = 9600;
  34 --
  35 2.19.1
  36