1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/serial/mux.c b/drivers/serial/mux.c
index aa819d3f8ee5..8ad1b8c5ec5d 100644
--- a/drivers/serial/mux.c
+++ b/drivers/serial/mux.c
@@ -230,7 +230,7 @@ static void mux_read(struct uart_port *port)
                                 continue;
                 }
 
-                if (uart_handle_sysrq_char(port, data & 0xffu, NULL))
+                if (uart_handle_sysrq_char(port, data & 0xffu))
                         continue;
 
                 tty_insert_flip_char(tty, data & 0xFF, TTY_NORMAL);