if (ncci == 0xffffffff || np->ncci == ncci) {
*pp = (*pp)->next;
#ifdef CONFIG_ISDN_CAPI_MIDDLEWARE
- if ((mp = np->minorp) != 0) {
+ if ((mp = np->minorp) != NULL) {
#if defined(CONFIG_ISDN_CAPI_CAPIFS) || defined(CONFIG_ISDN_CAPI_CAPIFS_MODULE)
capifs_free_ncci(mp->minor);
#endif
}
#endif /* CONFIG_ISDN_CAPI_MIDDLEWARE */
kfree(np);
- if (*pp == 0) return;
+ if (*pp == NULL) return;
} else {
pp = &(*pp)->next;
}
#endif
goto bad;
}
- if ((nskb = gen_data_b3_resp_for(mp, skb)) == 0) {
+ if ((nskb = gen_data_b3_resp_for(mp, skb)) == NULL) {
printk(KERN_ERR "capi: gen_data_b3_resp failed\n");
goto bad;
}
static void handle_minor_recv(struct capiminor *mp)
{
struct sk_buff *skb;
- while ((skb = skb_dequeue(&mp->inqueue)) != 0) {
+ while ((skb = skb_dequeue(&mp->inqueue)) != NULL) {
unsigned int len = skb->len;
mp->inbytes -= len;
if (handle_recv_skb(mp, skb) < 0) {
return 0;
}
- while ((skb = skb_dequeue(&mp->outqueue)) != 0) {
+ while ((skb = skb_dequeue(&mp->outqueue)) != NULL) {
datahandle = mp->datahandle;
len = (u16)skb->len;
skb_push(skb, CAPI_DATA_B3_REQ_LEN);
if (!cdev->ap.applid)
return -ENODEV;
- if ((skb = skb_dequeue(&cdev->recvqueue)) == 0) {
+ if ((skb = skb_dequeue(&cdev->recvqueue)) == NULL) {
if (file->f_flags & O_NONBLOCK)
return -EAGAIN;
for (;;) {
interruptible_sleep_on(&cdev->recvwait);
- if ((skb = skb_dequeue(&cdev->recvqueue)) != 0)
+ if ((skb = skb_dequeue(&cdev->recvqueue)) != NULL)
break;
if (signal_pending(current))
break;
}
- if (skb == 0)
+ if (skb == NULL)
return -ERESTARTNOHAND;
}
if (skb->len > count) {
return -EFAULT;
mutex_lock(&cdev->ncci_list_mtx);
- if ((nccip = capincci_find(cdev, (u32) ncci)) == 0) {
+ if ((nccip = capincci_find(cdev, (u32) ncci)) == NULL) {
mutex_unlock(&cdev->ncci_list_mtx);
return 0;
}
#ifdef CONFIG_ISDN_CAPI_MIDDLEWARE
- if ((mp = nccip->minorp) != 0) {
+ if ((mp = nccip->minorp) != NULL) {
count += atomic_read(&mp->ttyopencount);
}
#endif /* CONFIG_ISDN_CAPI_MIDDLEWARE */
return -EFAULT;
mutex_lock(&cdev->ncci_list_mtx);
nccip = capincci_find(cdev, (u32) ncci);
- if (!nccip || (mp = nccip->minorp) == 0) {
+ if (!nccip || (mp = nccip->minorp) == NULL) {
mutex_unlock(&cdev->ncci_list_mtx);
return -ESRCH;
}
if (file->private_data)
return -EEXIST;
- if ((file->private_data = capidev_alloc()) == 0)
+ if ((file->private_data = capidev_alloc()) == NULL)
return -ENOMEM;
return nonseekable_open(inode, file);
struct capiminor *mp;
unsigned long flags;
- if ((mp = capiminor_find(iminor(file->f_path.dentry->d_inode))) == 0)
+ if ((mp = capiminor_find(iminor(file->f_path.dentry->d_inode))) == NULL)
return -ENXIO;
- if (mp->nccip == 0)
+ if (mp->nccip == NULL)
return -ENXIO;
tty->driver_data = (void *)mp;
#ifdef _DEBUG_REFCOUNT
printk(KERN_DEBUG "capinc_tty_close ocount=%d\n", atomic_read(&mp->ttyopencount));
#endif
- if (mp->nccip == 0)
+ if (mp->nccip == NULL)
capiminor_free(mp);
}
return count;
}
-static void capinc_tty_put_char(struct tty_struct *tty, unsigned char ch)
+static int capinc_tty_put_char(struct tty_struct *tty, unsigned char ch)
{
struct capiminor *mp = (struct capiminor *)tty->driver_data;
struct sk_buff *skb;
unsigned long flags;
+ int ret = 1;
#ifdef _DEBUG_TTYFUNCS
printk(KERN_DEBUG "capinc_put_char(%u)\n", ch);
#ifdef _DEBUG_TTYFUNCS
printk(KERN_DEBUG "capinc_tty_put_char: mp or mp->ncci NULL\n");
#endif
- return;
+ return 0;
}
spin_lock_irqsave(&workaround_lock, flags);
if (skb_tailroom(skb) > 0) {
*(skb_put(skb, 1)) = ch;
spin_unlock_irqrestore(&workaround_lock, flags);
- return;
+ return 1;
}
mp->ttyskb = NULL;
skb_queue_tail(&mp->outqueue, skb);
mp->ttyskb = skb;
} else {
printk(KERN_ERR "capinc_put_char: char %u lost\n", ch);
+ ret = 0;
}
spin_unlock_irqrestore(&workaround_lock, flags);
+ return ret;
}
static void capinc_tty_flush_chars(struct tty_struct *tty)
char *compileinfo;
int major_ret;
- if ((p = strchr(revision, ':')) != 0 && p[1]) {
+ if ((p = strchr(revision, ':')) != NULL && p[1]) {
strlcpy(rev, p + 2, sizeof(rev));
- if ((p = strchr(rev, '$')) != 0 && p > rev)
+ if ((p = strchr(rev, '$')) != NULL && p > rev)
*(p-1) = 0;
} else
strcpy(rev, "1.0");