From 653252c2302cdf2dfbca66a7e177f7db783f9efa Mon Sep 17 00:00:00 2001 From: Pavel Emelyanov Date: Fri, 25 Apr 2008 01:49:48 -0700 Subject: net: Fix wrong interpretation of some copy_to_user() results. I found some places, that erroneously return the value obtained from the copy_to_user() call: if some amount of bytes were not able to get to the user (this is what this one returns) the proper behavior is to return the -EFAULT error, not that number itself. Signed-off-by: Pavel Emelyanov Signed-off-by: David S. Miller --- net/tipc/socket.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'net/tipc') diff --git a/net/tipc/socket.c b/net/tipc/socket.c index 05853159536..230f9ca2ad6 100644 --- a/net/tipc/socket.c +++ b/net/tipc/socket.c @@ -1756,8 +1756,8 @@ static int getsockopt(struct socket *sock, else if (len < sizeof(value)) { res = -EINVAL; } - else if ((res = copy_to_user(ov, &value, sizeof(value)))) { - /* couldn't return value */ + else if (copy_to_user(ov, &value, sizeof(value))) { + res = -EFAULT; } else { res = put_user(sizeof(value), ol); -- cgit v1.2.3