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-rw-r--r--drivers/tty/serial/8250/8250_port.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8250/8250_port.c
index 1259fb6b66b3..b0af13074cd3 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -2653,6 +2653,10 @@ void serial8250_update_uartclk(struct uart_port *port, unsigned int uartclk)
goto out_lock;
port->uartclk = uartclk;
+
+ if (!tty_port_initialized(&port->state->port))
+ goto out_lock;
+
termios = &port->state->port.tty->termios;
baud = serial8250_get_baud_rate(port, termios, NULL);