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authorDavid S. Miller <davem@davemloft.net>2009-09-30 16:12:20 -0700
committerDavid S. Miller <davem@davemloft.net>2009-09-30 16:12:20 -0700
commitb7058842c940ad2c08dd829b21e5c92ebe3b8758 (patch)
tree5fe78d599fc345ca0bcd4b083b79095a54b2921b /net/phonet/pep.c
parenteb1cf0f8f7a9e5a6d573d5bd72c015686a042db0 (diff)
downloadlwn-b7058842c940ad2c08dd829b21e5c92ebe3b8758.tar.gz
lwn-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/phonet/pep.c')
-rw-r--r--net/phonet/pep.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/phonet/pep.c b/net/phonet/pep.c
index b8252d289cd7..5f32d217535b 100644
--- a/net/phonet/pep.c
+++ b/net/phonet/pep.c
@@ -742,7 +742,7 @@ static int pep_init(struct sock *sk)
}
static int pep_setsockopt(struct sock *sk, int level, int optname,
- char __user *optval, int optlen)
+ char __user *optval, unsigned int optlen)
{
struct pep_sock *pn = pep_sk(sk);
int val = 0, err = 0;