Messages in this thread Patch in this message | | | From | Ricardo Ribalda Delgado <> | Subject | [PATCH 12/12] serial_core: Remove call to driver-specific TIO[GS]RS485] | Date | Wed, 8 Oct 2014 21:57:38 +0200 |
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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.
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Jiri Slaby <jslaby@suse.cz> Cc: linux-serial@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com> --- drivers/tty/serial/serial_core.c | 17 +++++------------ 1 file changed, 5 insertions(+), 12 deletions(-)
diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c index 6015fd2..b59c925 100644 --- a/drivers/tty/serial/serial_core.c +++ b/drivers/tty/serial/serial_core.c @@ -1154,9 +1154,6 @@ 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; @@ -1250,7 +1247,12 @@ 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; @@ -1258,15 +1260,6 @@ 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) -- 2.1.1
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