net: Make setsockopt() optlen be unsigned.
This provides safety against negative optlen at the type
level instead of depending upon (sometimes non-trivial)
checks against this sprinkled all over the the place, in
each and every implementation.
Based upon work done by Arjan van de Ven and feedback
from Linus Torvalds.
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/atmdev.h b/include/linux/atmdev.h
index 086e5c3..817b237 100644
--- a/include/linux/atmdev.h
+++ b/include/linux/atmdev.h
@@ -397,7 +397,7 @@
int (*getsockopt)(struct atm_vcc *vcc,int level,int optname,
void __user *optval,int optlen);
int (*setsockopt)(struct atm_vcc *vcc,int level,int optname,
- void __user *optval,int optlen);
+ void __user *optval,unsigned int optlen);
int (*send)(struct atm_vcc *vcc,struct sk_buff *skb);
int (*send_oam)(struct atm_vcc *vcc,void *cell,int flags);
void (*phy_put)(struct atm_dev *dev,unsigned char value,