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Commit 185fcb3f authored by Johan Hovold's avatar Johan Hovold
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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: default avatarJohan Hovold <johan@kernel.org>
parent 7aac5e7d

drivers/usb/serial/quatech2.c

+1 −3
Original line number Diff line number Diff line
@@ -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);