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authorDavid S. Miller <davem@davemloft.net>2009-10-01 03:12:20 +0400
committerDavid S. Miller <davem@davemloft.net>2009-10-01 03:12:20 +0400
commitb7058842c940ad2c08dd829b21e5c92ebe3b8758 (patch)
tree5fe78d599fc345ca0bcd4b083b79095a54b2921b /drivers/isdn
parenteb1cf0f8f7a9e5a6d573d5bd72c015686a042db0 (diff)
downloadlinux-b7058842c940ad2c08dd829b21e5c92ebe3b8758.tar.xz
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 'drivers/isdn')
-rw-r--r--drivers/isdn/mISDN/socket.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/isdn/mISDN/socket.c b/drivers/isdn/mISDN/socket.c
index c36f52137456..feb0fa45b664 100644
--- a/drivers/isdn/mISDN/socket.c
+++ b/drivers/isdn/mISDN/socket.c
@@ -415,7 +415,7 @@ data_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
}
static int data_sock_setsockopt(struct socket *sock, int level, int optname,
- char __user *optval, int len)
+ char __user *optval, unsigned int len)
{
struct sock *sk = sock->sk;
int err = 0, opt = 0;