From a9c20a9cf3190a517b88d8e08d93157256f97673 Mon Sep 17 00:00:00 2001 From: Ricardo Ribalda Delgado Date: Thu, 6 Nov 2014 09:22:59 +0100 Subject: serial_core: Remove call to driver-specific TIO[GS]RS485] Once there is no more handlers for TIOC[GS]RS485 there is no need to call the driver specific ioctl when the generic implementation is missing. Reviewed-by: Alan Cox Cc: Jiri Slaby Signed-off-by: Ricardo Ribalda Delgado Signed-off-by: Greg Kroah-Hartman --- drivers/tty/serial/serial_core.c | 17 +++++------------ 1 file changed, 5 insertions(+), 12 deletions(-) (limited to 'drivers') diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c index ab4db1dcc474..99fcdba0e3e9 100644 --- a/drivers/tty/serial/serial_core.c +++ b/drivers/tty/serial/serial_core.c @@ -1155,9 +1155,6 @@ static int uart_get_icount(struct tty_struct *tty, static int uart_get_rs485_config(struct uart_port *port, struct serial_rs485 __user *rs485) { - if (!port->rs485_config) - return -ENOIOCTLCMD; - if (copy_to_user(rs485, &port->rs485, sizeof(port->rs485))) return -EFAULT; return 0; @@ -1255,7 +1252,12 @@ uart_ioctl(struct tty_struct *tty, unsigned int cmd, * All these rely on hardware being present and need to be * protected against the tty being hung up. */ + switch (cmd) { + case TIOCSERGETLSR: /* Get line status register */ + ret = uart_get_lsr_info(tty, state, uarg); + break; + case TIOCGRS485: ret = uart_get_rs485_config(state->uart_port, uarg); break; @@ -1263,15 +1265,6 @@ uart_ioctl(struct tty_struct *tty, unsigned int cmd, case TIOCSRS485: ret = uart_set_rs485_config(state->uart_port, uarg); break; - } - if (ret != -ENOIOCTLCMD) - goto out; - - switch (cmd) { - case TIOCSERGETLSR: /* Get line status register */ - ret = uart_get_lsr_info(tty, state, uarg); - break; - default: { struct uart_port *uport = state->uart_port; if (uport->ops->ioctl) -- cgit v1.2.3