Commit c9d93405 authored by Johan Hovold's avatar Johan Hovold
Browse files

USB: serial: report unsupported break signalling 



Instead of returning success when a driver does not support break
signalling, return an error to let user space know and to avoid waiting
when break is not supported.

Tested-by: default avatarCorey Minyard <cminyard@mvista.com>
Signed-off-by: default avatarJohan Hovold <johan@kernel.org>
parent f4bbae27

drivers/usb/serial/usb-serial.c

+1 −1
Original line number Diff line number Diff line
@@ -541,7 +541,7 @@ static int serial_break(struct tty_struct *tty, int break_state) 
	if (port->serial->type->break_ctl)

		return port->serial->type->break_ctl(tty, break_state);



	return 0;

	return -ENOTTY;

}



static int serial_proc_show(struct seq_file *m, void *v)