wake_up_interruptible (&tty->read_wait);
wake_up_interruptible (&tty->write_wait);
- if (tty != NULL && tty->disc_data == n_hdlc)
+ if (tty->disc_data == n_hdlc)
tty->disc_data = NULL; /* Break the tty->n_hdlc link */
/* Release transmit and receive buffers */
__FILE__,__LINE__, count);
/* This can happen if stuff comes in on the backup tty */
- if (n_hdlc == 0 || tty != n_hdlc->tty)
+ if (!n_hdlc || tty != n_hdlc->tty)
return;
/* verify line is using HDLC discipline */