diff options
Diffstat (limited to 'drivers/isdn')
| -rw-r--r-- | drivers/isdn/capi/capi.c | 64 |
1 files changed, 31 insertions, 33 deletions
diff --git a/drivers/isdn/capi/capi.c b/drivers/isdn/capi/capi.c index e164a8fb9693..acc811bfe8e0 100644 --- a/drivers/isdn/capi/capi.c +++ b/drivers/isdn/capi/capi.c @@ -1097,7 +1097,7 @@ static void capinc_tty_close(struct tty_struct *tty, struct file *filp) static int capinc_tty_write(struct tty_struct * tty, const unsigned char *buf, int count) { - struct capiminor *mp = (struct capiminor *)tty->driver_data; + struct capiminor *mp = tty->driver_data; struct sk_buff *skb; unsigned long flags; @@ -1105,7 +1105,7 @@ static int capinc_tty_write(struct tty_struct * tty, printk(KERN_DEBUG "capinc_tty_write(count=%d)\n", count); #endif - if (!mp || !mp->nccip) { + if (!mp->nccip) { #ifdef _DEBUG_TTYFUNCS printk(KERN_DEBUG "capinc_tty_write: mp or mp->ncci NULL\n"); #endif @@ -1140,7 +1140,7 @@ static int capinc_tty_write(struct tty_struct * tty, static int capinc_tty_put_char(struct tty_struct *tty, unsigned char ch) { - struct capiminor *mp = (struct capiminor *)tty->driver_data; + struct capiminor *mp = tty->driver_data; struct sk_buff *skb; unsigned long flags; int ret = 1; @@ -1149,7 +1149,7 @@ static int capinc_tty_put_char(struct tty_struct *tty, unsigned char ch) printk(KERN_DEBUG "capinc_put_char(%u)\n", ch); #endif - if (!mp || !mp->nccip) { + if (!mp->nccip) { #ifdef _DEBUG_TTYFUNCS printk(KERN_DEBUG "capinc_tty_put_char: mp or mp->ncci NULL\n"); #endif @@ -1184,7 +1184,7 @@ static int capinc_tty_put_char(struct tty_struct *tty, unsigned char ch) static void capinc_tty_flush_chars(struct tty_struct *tty) { - struct capiminor *mp = (struct capiminor *)tty->driver_data; + struct capiminor *mp = tty->driver_data; struct sk_buff *skb; unsigned long flags; @@ -1192,7 +1192,7 @@ static void capinc_tty_flush_chars(struct tty_struct *tty) printk(KERN_DEBUG "capinc_tty_flush_chars\n"); #endif - if (!mp || !mp->nccip) { + if (!mp->nccip) { #ifdef _DEBUG_TTYFUNCS printk(KERN_DEBUG "capinc_tty_flush_chars: mp or mp->ncci NULL\n"); #endif @@ -1213,9 +1213,10 @@ static void capinc_tty_flush_chars(struct tty_struct *tty) static int capinc_tty_write_room(struct tty_struct *tty) { - struct capiminor *mp = (struct capiminor *)tty->driver_data; + struct capiminor *mp = tty->driver_data; int room; - if (!mp || !mp->nccip) { + + if (!mp->nccip) { #ifdef _DEBUG_TTYFUNCS printk(KERN_DEBUG "capinc_tty_write_room: mp or mp->ncci NULL\n"); #endif @@ -1231,8 +1232,9 @@ static int capinc_tty_write_room(struct tty_struct *tty) static int capinc_tty_chars_in_buffer(struct tty_struct *tty) { - struct capiminor *mp = (struct capiminor *)tty->driver_data; - if (!mp || !mp->nccip) { + struct capiminor *mp = tty->driver_data; + + if (!mp->nccip) { #ifdef _DEBUG_TTYFUNCS printk(KERN_DEBUG "capinc_tty_chars_in_buffer: mp or mp->ncci NULL\n"); #endif @@ -1266,55 +1268,51 @@ static void capinc_tty_set_termios(struct tty_struct *tty, struct ktermios * old #endif } -static void capinc_tty_throttle(struct tty_struct * tty) +static void capinc_tty_throttle(struct tty_struct *tty) { - struct capiminor *mp = (struct capiminor *)tty->driver_data; + struct capiminor *mp = tty->driver_data; #ifdef _DEBUG_TTYFUNCS printk(KERN_DEBUG "capinc_tty_throttle\n"); #endif - if (mp) - mp->ttyinstop = 1; + mp->ttyinstop = 1; } -static void capinc_tty_unthrottle(struct tty_struct * tty) +static void capinc_tty_unthrottle(struct tty_struct *tty) { - struct capiminor *mp = (struct capiminor *)tty->driver_data; + struct capiminor *mp = tty->driver_data; unsigned long flags; + #ifdef _DEBUG_TTYFUNCS printk(KERN_DEBUG "capinc_tty_unthrottle\n"); #endif - if (mp) { - spin_lock_irqsave(&workaround_lock, flags); - mp->ttyinstop = 0; - handle_minor_recv(mp); - spin_unlock_irqrestore(&workaround_lock, flags); - } + spin_lock_irqsave(&workaround_lock, flags); + mp->ttyinstop = 0; + handle_minor_recv(mp); + spin_unlock_irqrestore(&workaround_lock, flags); } static void capinc_tty_stop(struct tty_struct *tty) { - struct capiminor *mp = (struct capiminor *)tty->driver_data; + struct capiminor *mp = tty->driver_data; + #ifdef _DEBUG_TTYFUNCS printk(KERN_DEBUG "capinc_tty_stop\n"); #endif - if (mp) { - mp->ttyoutstop = 1; - } + mp->ttyoutstop = 1; } static void capinc_tty_start(struct tty_struct *tty) { - struct capiminor *mp = (struct capiminor *)tty->driver_data; + struct capiminor *mp = tty->driver_data; unsigned long flags; + #ifdef _DEBUG_TTYFUNCS printk(KERN_DEBUG "capinc_tty_start\n"); #endif - if (mp) { - spin_lock_irqsave(&workaround_lock, flags); - mp->ttyoutstop = 0; - (void)handle_minor_send(mp); - spin_unlock_irqrestore(&workaround_lock, flags); - } + spin_lock_irqsave(&workaround_lock, flags); + mp->ttyoutstop = 0; + (void)handle_minor_send(mp); + spin_unlock_irqrestore(&workaround_lock, flags); } static void capinc_tty_hangup(struct tty_struct *tty) |