1 files changed, 7 insertions, 12 deletions

diff --git a/drivers/tty/serial/mrst_max3110.c b/drivers/tty/serial/mrst_max3110.c
index 58734d7e746d..f641c232beca 100644
--- a/drivers/tty/serial/mrst_max3110.c
+++ b/drivers/tty/serial/mrst_max3110.c
@@ -339,7 +339,7 @@ static int
 receive_chars(struct uart_max3110 *max, unsigned short *str, int len)
 {
         struct uart_port *port = &max->port;
-        struct tty_struct *tty;
+        struct tty_port *tport;
         char buf[M3110_RX_FIFO_DEPTH];
         int r, w, usable;
 
@@ -347,9 +347,7 @@ receive_chars(struct uart_max3110 *max, unsigned short *str, int len)
         if (!port->state)
                 return 0;
 
-        tty = tty_port_tty_get(&port->state->port);
-        if (!tty)
-                return 0;
+        tport = &port->state->port;
 
         for (r = 0, w = 0; r < len; r++) {
                 if (str[r] & MAX3110_BREAK &&
@@ -364,20 +362,17 @@ receive_chars(struct uart_max3110 *max, unsigned short *str, int len)
                 }
         }
 
-        if (!w) {
-                tty_kref_put(tty);
+        if (!w)
                 return 0;
-        }
 
         for (r = 0; w; r += usable, w -= usable) {
-                usable = tty_buffer_request_room(tty, w);
+                usable = tty_buffer_request_room(tport, w);
                 if (usable) {
-                        tty_insert_flip_string(tty, buf + r, usable);
+                        tty_insert_flip_string(tport, buf + r, usable);
                         port->icount.rx += usable;
                 }
         }
-        tty_flip_buffer_push(tty);
-        tty_kref_put(tty);
+        tty_flip_buffer_push(tport);
 
         return r;
 }
@@ -493,7 +488,7 @@ static int serial_m3110_startup(struct uart_port *port)
                         | WC_BAUD_DR2;
 
         /* as we use thread to handle tx/rx, need set low latency */
-        port->state->port.tty->low_latency = 1;
+        port->state->port.low_latency = 1;
 
         if (max->irq) {
                 max->read_thread = NULL;