1 files changed, 1 insertions, 3 deletions

diff --git a/drivers/usb/serial/cypress_m8.c b/drivers/usb/serial/cypress_m8.c
index 4e9637eb6137..68067fe117a4 100644
--- a/drivers/usb/serial/cypress_m8.c
+++ b/drivers/usb/serial/cypress_m8.c
@@ -1263,12 +1263,10 @@ static void cypress_read_int_callback(struct urb *urb, struct pt_regs *regs)
 
         /* process read if there is data other than line status */
         if (tty && (bytes > i)) {
+                bytes = tty_buffer_request_room(tty, bytes);
                 for (; i < bytes ; ++i) {
                         dbg("pushing byte number %d - %d - %c", i, data[i],
                                         data[i]);
-                        if(tty->flip.count >= TTY_FLIPBUF_SIZE) {
-                                tty_flip_buffer_push(tty);
-                        }
                         tty_insert_flip_char(tty, data[i], tty_flag);
                 }
                 tty_flip_buffer_push(port->tty);