From 185fcb3fbe6d32d894b8b72429622d91c59b10f6 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Mon, 3 Apr 2017 11:58:55 +0200 Subject: [PATCH] USB: serial: quatech2: drop redundant tty_buffer_request_room Drop redundant calls to tty_buffer_request_room and use the more efficient tty_insert_flip_char when inserting single characters. Signed-off-by: Johan Hovold --- drivers/usb/serial/quatech2.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/usb/serial/quatech2.c b/drivers/usb/serial/quatech2.c index 6ddcaa2..60e17d1 100644 --- a/drivers/usb/serial/quatech2.c +++ b/drivers/usb/serial/quatech2.c @@ -601,7 +601,6 @@ static void qt2_process_read_urb(struct urb *urb) escapeflag = true; break; case QT2_CONTROL_ESCAPE: - tty_buffer_request_room(&port->port, 2); tty_insert_flip_string(&port->port, ch, 2); i += 2; escapeflag = true; @@ -616,8 +615,7 @@ static void qt2_process_read_urb(struct urb *urb) continue; } - tty_buffer_request_room(&port->port, 1); - tty_insert_flip_string(&port->port, ch, 1); + tty_insert_flip_char(&port->port, *ch, TTY_NORMAL); } tty_flip_buffer_push(&port->port); -- 2.7.4