rose: Fix signedness issues wrt. digi count.

Just use explicit casts, since we really can't change the
types of structures exported to userspace which have been
around for 15 years or so.

Reported-by: Dan Rosenberg <dan.j.rosenberg@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/rose/af_rose.c b/net/rose/af_rose.c
index 8e45e76a95f51cdca332263ee7e32108f0beb95c..d952e7eac18867501a0bf7d2034c621c2fd08df7 100644 (file)
--- a/net/rose/af_rose.c
+++ b/net/rose/af_rose.c
@@ -679,7 +679,7 @@ static int rose_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
        if (addr_len == sizeof(struct sockaddr_rose) && addr->srose_ndigis > 1)
                return -EINVAL;
 
-       if (addr->srose_ndigis > ROSE_MAX_DIGIS)
+       if ((unsigned int) addr->srose_ndigis > ROSE_MAX_DIGIS)
                return -EINVAL;
 
        if ((dev = rose_dev_get(&addr->srose_addr)) == NULL) {
@@ -739,7 +739,7 @@ static int rose_connect(struct socket *sock, struct sockaddr *uaddr, int addr_le
        if (addr_len == sizeof(struct sockaddr_rose) && addr->srose_ndigis > 1)
                return -EINVAL;
 
-       if (addr->srose_ndigis > ROSE_MAX_DIGIS)
+       if ((unsigned int) addr->srose_ndigis > ROSE_MAX_DIGIS)
                return -EINVAL;
 
        /* Source + Destination digis should not exceed ROSE_MAX_DIGIS */