serial: move delta_msr_wait into the tty_port

This is used by various drivers not just serial and can be extracted
as commonality

Signed-off-by: Alan Cox <alan@linux.intel.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c
index e415c5eca599..2209620d2349 100644
--- a/drivers/serial/8250.c
+++ b/drivers/serial/8250.c
@@ -1510,7 +1510,7 @@ static unsigned int check_modem_status(struct uart_8250_port *up)
                 if (status & UART_MSR_DCTS)
                         uart_handle_cts_change(&up->port, status & UART_MSR_CTS);
 
-                wake_up_interruptible(&up->port.state->delta_msr_wait);
+                wake_up_interruptible(&up->port.state->port.delta_msr_wait);
         }
 
         return status;