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path: root/drivers/isdn/i4l/isdn_ppp.c
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Diffstat (limited to 'drivers/isdn/i4l/isdn_ppp.c')
-rw-r--r--drivers/isdn/i4l/isdn_ppp.c9
1 files changed, 4 insertions, 5 deletions
diff --git a/drivers/isdn/i4l/isdn_ppp.c b/drivers/isdn/i4l/isdn_ppp.c
index 1a19a0f89428..a0927d1b7a0c 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