diff options
Diffstat (limited to 'drivers/char/generic_serial.c')
| -rw-r--r-- | drivers/char/generic_serial.c | 21 |
1 files changed, 0 insertions, 21 deletions
diff --git a/drivers/char/generic_serial.c b/drivers/char/generic_serial.c index 19d3afb0e50..c6090f84a2e 100644 --- a/drivers/char/generic_serial.c +++ b/drivers/char/generic_serial.c @@ -54,8 +54,6 @@ int gs_put_char(struct tty_struct * tty, unsigned char ch) func_enter (); - if (!tty) return 0; - port = tty->driver_data; if (!port) return 0; @@ -97,8 +95,6 @@ int gs_write(struct tty_struct * tty, func_enter (); - if (!tty) return 0; - port = tty->driver_data; if (!port) return 0; @@ -185,7 +181,6 @@ static int gs_real_chars_in_buffer(struct tty_struct *tty) struct gs_port *port; func_enter (); - if (!tty) return 0; port = tty->driver_data; if (!port->rd) return 0; @@ -274,8 +269,6 @@ void gs_flush_buffer(struct tty_struct *tty) func_enter (); - if (!tty) return; - port = tty->driver_data; if (!port) return; @@ -296,8 +289,6 @@ void gs_flush_chars(struct tty_struct * tty) func_enter (); - if (!tty) return; - port = tty->driver_data; if (!port) return; @@ -321,8 +312,6 @@ void gs_stop(struct tty_struct * tty) func_enter (); - if (!tty) return; - port = tty->driver_data; if (!port) return; @@ -341,8 +330,6 @@ void gs_start(struct tty_struct * tty) { struct gs_port *port; - if (!tty) return; - port = tty->driver_data; if (!port) return; @@ -393,8 +380,6 @@ void gs_hangup(struct tty_struct *tty) func_enter (); - if (!tty) return; - port = tty->driver_data; tty = port->port.tty; if (!tty) @@ -426,8 +411,6 @@ int gs_block_til_ready(void *port_, struct file * filp) tty = port->port.tty; - if (!tty) return 0; - gs_dprintk (GS_DEBUG_BTR, "Entering gs_block_till_ready.\n"); /* * If the device is in the middle of being closed, then block @@ -523,8 +506,6 @@ void gs_close(struct tty_struct * tty, struct file * filp) func_enter (); - if (!tty) return; - port = (struct gs_port *) tty->driver_data; if (!port) return; @@ -621,8 +602,6 @@ void gs_set_termios (struct tty_struct * tty, func_enter(); - if (!tty) return; - port = tty->driver_data; if (!port) return; |