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n_tty: Remove unnecessary local variable

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Flatten conditional evaluation in n_tty_set_termios; remove
canon_change.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Peter Hurley 2013-09-17 12:53:35 -04:00 committed by Greg Kroah-Hartman
parent 1cb40d0872
commit c786f74e0b
1 changed files with 1 additions and 4 deletions
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5
drivers/tty/n_tty.c
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@ -1752,11 +1752,8 @@ int is_ignored(int sig)
static void n_tty_set_termios(struct tty_struct *tty, struct ktermios *old)
{
struct n_tty_data *ldata = tty->disc_data;
int canon_change = 1;
if (old)
canon_change = (old->c_lflag ^ tty->termios.c_lflag) & ICANON;
if (canon_change) {
if (!old || (old->c_lflag ^ tty->termios.c_lflag) & ICANON) {
bitmap_zero(ldata->read_flags, N_TTY_BUF_SIZE);
ldata->line_start = 0;
ldata->canon_head = ldata->read_tail;