TTY: nfcon, add tty_port and link it

Every tty driver needs tty_port for each line. So let us add one to
nfcon too. And link it so that the tty layer knows about it.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: linux-m68k@lists.linux-m68k.org
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 4 insertions, 0 deletions

diff --git a/arch/m68k/emu/nfcon.c b/arch/m68k/emu/nfcon.c
index 8db25e806947..16d170f53bfd 100644
--- a/arch/m68k/emu/nfcon.c
+++ b/arch/m68k/emu/nfcon.c
@@ -19,6 +19,7 @@
 #include <asm/natfeat.h>
 
 static int stderr_id;
+static struct tty_port nfcon_tty_port;
 static struct tty_driver *nfcon_tty_driver;
 
 static void nfputs(const char *str, unsigned int count)
@@ -119,6 +120,8 @@ static int __init nfcon_init(void)
 {
         int res;
 
+        tty_port_init(&nfcon_tty_port);
+
         stderr_id = nf_get_id("NF_STDERR");
         if (!stderr_id)
                 return -ENODEV;
@@ -135,6 +138,7 @@ static int __init nfcon_init(void)
         nfcon_tty_driver->flags = TTY_DRIVER_REAL_RAW;
 
         tty_set_operations(nfcon_tty_driver, &nfcon_tty_ops);
+        tty_port_link_device(&nfcon_tty_port, nfcon_tty_driver, 0);
         res = tty_register_driver(nfcon_tty_driver);
         if (res) {
                 pr_err("failed to register nfcon tty driver\n");