From 410235fd4d20b8feaf8930a0575d23acc088aa87 Mon Sep 17 00:00:00 2001 From: Jiri Slaby Date: Mon, 5 Mar 2012 14:52:01 +0100 Subject: TTY: remove unneeded tty->index checks Checking if tty->index is in bounds is not needed. The tty has the index set in the initial open. This is done in get_tty_driver. And it can be only in interval <0,driver->num). So remove the tests which check exactly this interval. Some are left untouched as they check against the current backing device count. (Leaving apart that the check is racy in most of the cases.) Signed-off-by: Jiri Slaby Signed-off-by: Greg Kroah-Hartman --- drivers/tty/serial/crisv10.c | 15 +++------------ 1 file changed, 3 insertions(+), 12 deletions(-) (limited to 'drivers/tty/serial/crisv10.c') diff --git a/drivers/tty/serial/crisv10.c b/drivers/tty/serial/crisv10.c index 1dfba7b779c..23d79169687 100644 --- a/drivers/tty/serial/crisv10.c +++ b/drivers/tty/serial/crisv10.c @@ -4105,20 +4105,11 @@ static int rs_open(struct tty_struct *tty, struct file * filp) { struct e100_serial *info; - int retval, line; + int retval; unsigned long page; int allocated_resources = 0; - /* find which port we want to open */ - line = tty->index; - - if (line < 0 || line >= NR_PORTS) - return -ENODEV; - - /* find the corresponding e100_serial struct in the table */ - info = rs_table + line; - - /* don't allow the opening of ports that are not enabled in the HW config */ + info = rs_table + tty->index; if (!info->enabled) return -ENODEV; @@ -4131,7 +4122,7 @@ rs_open(struct tty_struct *tty, struct file * filp) tty->driver_data = info; info->port.tty = tty; - info->port.tty->low_latency = (info->flags & ASYNC_LOW_LATENCY) ? 1 : 0; + tty->low_latency = !!(info->flags & ASYNC_LOW_LATENCY); if (!tmp_buf) { page = get_zeroed_page(GFP_KERNEL); -- cgit v1.2.3-70-g09d2