summaryrefslogtreecommitdiffstats
path: root/net/ax25
diff options
context:
space:
mode:
authorDavid S. Miller <davem@davemloft.net>2009-10-01 01:12:20 +0200
committerDavid S. Miller <davem@davemloft.net>2009-10-01 01:12:20 +0200
commitb7058842c940ad2c08dd829b21e5c92ebe3b8758 (patch)
tree5fe78d599fc345ca0bcd4b083b79095a54b2921b /net/ax25
parentMerge branch 'master' of ssh://master.kernel.org/pub/scm/linux/kernel/git/lin... (diff)
downloadlinux-b7058842c940ad2c08dd829b21e5c92ebe3b8758.tar.xz
linux-b7058842c940ad2c08dd829b21e5c92ebe3b8758.zip
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>
Diffstat (limited to 'net/ax25')
-rw-r--r--net/ax25/af_ax25.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ax25/af_ax25.c b/net/ax25/af_ax25.c
index 4102de1022ee..cd1c3dc0fe01 100644
--- a/net/ax25/af_ax25.c
+++ b/net/ax25/af_ax25.c
@@ -534,7 +534,7 @@ ax25_cb *ax25_create_cb(void)
*/
static int ax25_setsockopt(struct socket *sock, int level, int optname,
- char __user *optval, int optlen)
+ char __user *optval, unsigned int optlen)
{
struct sock *sk = sock->sk;
ax25_cb *ax25;