kgdboc: Use for_each_console() helper

Replace open coded single-linked list iteration loop with for_each_console()
helper in use.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20200124161132.65519-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/serial/kgdboc.c b/drivers/tty/serial/kgdboc.c
index c7d51b5..c9f94fa 100644 (file)
--- a/drivers/tty/serial/kgdboc.c
+++ b/drivers/tty/serial/kgdboc.c
@@ -169,15 +169,13 @@ static int configure_kgdboc(void)
        if (!p)
                goto noconfig;
 
-       cons = console_drivers;
-       while (cons) {
+       for_each_console(cons) {
                int idx;
                if (cons->device && cons->device(cons, &idx) == p &&
                    idx == tty_line) {
                        kgdboc_io_ops.is_console = 1;
                        break;
                }
-               cons = cons->next;
        }
 
        kgdb_tty_driver = p;