staging: dgap: fixes incompatible type error

This patch fixes the error: incompatible types
when assigning to type ‘struct ktermios *’ from
type ‘struct ktermios’
Signed-off-by: Lidza Louina <lidza.louina@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/dgap/dgap_fep5.c

@@ -1260,7 +1260,7 @@ int dgap_param(struct tty_struct *tty)
 	DPR_PARAM(("param start: tdev: %x cflags: %x oflags: %x iflags: %x\n",
 		ch->ch_tun.un_dev, ch->ch_c_cflag, ch->ch_c_oflag, ch->ch_c_iflag));
 
-	ts = tty->termios;
+	ts = &tty->termios;
 
 	/*
 	 * If baud rate is zero, flush queues, and set mval to drop DTR.