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>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/atm/iphase.c b/drivers/atm/iphase.c
index 78c9736c3579..b2c1b37ab2e4 100644
--- a/drivers/atm/iphase.c
+++ b/drivers/atm/iphase.c
@@ -2862,7 +2862,7 @@ static int ia_getsockopt(struct atm_vcc *vcc, int level, int optname,
 }  
   
 static int ia_setsockopt(struct atm_vcc *vcc, int level, int optname,   
-        void __user *optval, int optlen)  
+        void __user *optval, unsigned int optlen)  
 {  
         IF_EVENT(printk(">ia_setsockopt\n");)  
         return -EINVAL;