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ser_gigaset: fix up NULL checks 

Commit f34d7a5b70 ("tty: The big operations rework") changed
tty->driver to tty->ops but left NULL checks for tty->driver untouched.
Fix.

Signed-off-by: Tilman Schmidt <tilman@imap.cc>
[pebolle: removed Fixes tag]
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Tilman Schmidt 2015-12-15 18:11:28 +01:00 committed by David S. Miller
parent 389e4e04ad
commit 74375c0528
1 changed files with 3 additions and 3 deletions
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6
drivers/isdn/gigaset/ser-gigaset.c
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@ -67,7 +67,7 @@ static int write_modem(struct cardstate *cs)
struct sk_buff *skb = bcs->tx_skb;
int sent = -EOPNOTSUPP;
if (!tty || !tty->driver || !skb)
if (!tty || !tty->ops || !skb)
return -EINVAL;
if (!skb->len) {
@ -109,7 +109,7 @@ static int send_cb(struct cardstate *cs)
unsigned long flags;
int sent = 0;
if (!tty || !tty->driver)
if (!tty || !tty->ops)
return -EFAULT;
cb = cs->cmdbuf;
@ -432,7 +432,7 @@ static int gigaset_set_modem_ctrl(struct cardstate *cs, unsigned old_state,
struct tty_struct *tty = cs->hw.ser->tty;
unsigned int set, clear;
if (!tty || !tty->driver || !tty->ops->tiocmset)
if (!tty || !tty->ops || !tty->ops->tiocmset)
return -EINVAL;
set = new_state & ~old_state;
clear = old_state & ~new_state;