diff options
Diffstat (limited to 'drivers/isdn/i4l/isdn_ppp.c')
| -rw-r--r-- | drivers/isdn/i4l/isdn_ppp.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/drivers/isdn/i4l/isdn_ppp.c b/drivers/isdn/i4l/isdn_ppp.c index 1a19a0f8942..a0927d1b7a0 100644 --- a/drivers/isdn/i4l/isdn_ppp.c +++ b/drivers/isdn/i4l/isdn_ppp.c @@ -782,7 +782,8 @@ isdn_ppp_read(int min, struct file *file, char __user *buf, int count) is->first = b; spin_unlock_irqrestore(&is->buflock, flags); - copy_to_user(buf, save_buf, count); + if (copy_to_user(buf, save_buf, count)) + count = -EFAULT; kfree(save_buf); return count; @@ -973,8 +974,7 @@ void isdn_ppp_receive(isdn_net_dev * net_dev, isdn_net_local * lp, struct sk_buf int slot; int proto; - if (net_dev->local->master) - BUG(); // we're called with the master device always + BUG_ON(net_dev->local->master); // we're called with the master device always slot = lp->ppp_slot; if (slot < 0 || slot >= ISDN_MAX_CHANNELS) { @@ -2526,8 +2526,7 @@ static struct sk_buff *isdn_ppp_decompress(struct sk_buff *skb,struct ippp_struc printk(KERN_DEBUG "ippp: no decompressor defined!\n"); return skb; } - if (!stat) // if we have a compressor, stat has been set as well - BUG(); + BUG_ON(!stat); // if we have a compressor, stat has been set as well if((master && *proto == PPP_COMP) || (!master && *proto == PPP_COMPFRAG) ) { // compressed packets are compressed by their protocol type |