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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/atm/common.h
parenteb1cf0f8f7a9e5a6d573d5bd72c015686a042db0 (diff)
downloadlinux-b7058842c940ad2c08dd829b21e5c92ebe3b8758.tar.gz
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/atm/common.h')
-rw-r--r--net/atm/common.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/atm/common.h b/net/atm/common.h
index 92e2981f479..f48a76b6cdf 100644
--- a/net/atm/common.h
+++ b/net/atm/common.h
@@ -21,7 +21,7 @@ unsigned int vcc_poll(struct file *file, struct socket *sock, poll_table *wait);
int vcc_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg);
int vcc_compat_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg);
int vcc_setsockopt(struct socket *sock, int level, int optname,
- char __user *optval, int optlen);
+ char __user *optval, unsigned int optlen);
int vcc_getsockopt(struct socket *sock, int level, int optname,
char __user *optval, int __user *optlen);