TTY: add tty_port_tty_wakeup helper

It allows for cleaning up on a considerable amount of places. They did
port_get, wakeup, kref_put. Now the only thing needed is to call
tty_port_tty_wakeup which does exactly that.

One exception is ifx6x60 where tty_wakeup was open-coded. We now call
tty_wakeup properly there.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 1 insertions, 5 deletions

diff --git a/drivers/tty/nozomi.c b/drivers/tty/nozomi.c
index 2dff19796157..2e5bbdc09e1c 100644
--- a/drivers/tty/nozomi.c
+++ b/drivers/tty/nozomi.c
@@ -791,7 +791,6 @@ static int send_data(enum port_type index, struct nozomi *dc)
         const u8 toggle = port->toggle_ul;
         void __iomem *addr = port->ul_addr[toggle];
         const u32 ul_size = port->ul_size[toggle];
-        struct tty_struct *tty = tty_port_tty_get(&port->port);
 
         /* Get data from tty and place in buf for now */
         size = kfifo_out(&port->fifo_ul, dc->send_buf,
@@ -799,7 +798,6 @@ static int send_data(enum port_type index, struct nozomi *dc)
 
         if (size == 0) {
                 DBG4("No more data to send, disable link:");
-                tty_kref_put(tty);
                 return 0;
         }
 
@@ -809,10 +807,8 @@ static int send_data(enum port_type index, struct nozomi *dc)
         write_mem32(addr, (u32 *) &size, 4);
         write_mem32(addr + 4, (u32 *) dc->send_buf, size);
 
-        if (tty)
-                tty_wakeup(tty);
+        tty_port_tty_wakeup(&port->port);
 
-        tty_kref_put(tty);
         return 1;
 }