tun: Fixed unsigned/signed comparison

Validated that this was actually using the unsigned comparison with gdb.

Signed-off-by: Alex Gartrell <agartrell@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index 8c8dc16..df5e948 100644 (file)
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -1501,7 +1501,7 @@ static int tun_recvmsg(struct kiocb *iocb, struct socket *sock,
                goto out;
        }
        ret = tun_do_read(tun, tfile, &m->msg_iter, flags & MSG_DONTWAIT);
-       if (ret > total_len) {
+       if (ret > (ssize_t)total_len) {
                m->msg_flags |= MSG_TRUNC;
                ret = flags & MSG_TRUNC ? ret : total_len;
        }