tty: tty_ldisc: Do not use assignment in if condition

Do not use assignment in if condition following the advice of
checkpatch.pl.

Signed-off-by: Xiaofei Tan <tanxiaofei@huawei.com>
Link: https://lore.kernel.org/r/1617779210-51576-10-git-send-email-tanxiaofei@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/tty_ldisc.c b/drivers/tty/tty_ldisc.c
index 874d238236e6c1442d27e697b269f5069daaf66a..56e67f770b6d367760bc6f4fabd7220f9b00ef17 100644 (file)
--- a/drivers/tty/tty_ldisc.c
+++ b/drivers/tty/tty_ldisc.c
@@ -508,7 +508,8 @@ static int tty_ldisc_failto(struct tty_struct *tty, int ld)
                return PTR_ERR(disc);
        tty->ldisc = disc;
        tty_set_termios_ldisc(tty, ld);
-       if ((r = tty_ldisc_open(tty, disc)) < 0)
+       r = tty_ldisc_open(tty, disc);
+       if (r < 0)
                tty_ldisc_put(disc);
        return r;
 }