Merge git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb

[pandora-kernel.git] / net / can / raw.c

diff --git a/net/can/raw.c b/net/can/raw.c
index 201cbfc..6e0663f 100644 (file)
--- a/net/can/raw.c
+++ b/net/can/raw.c
@@ -210,7 +210,7 @@ static int raw_notifier(struct notifier_block *nb,
        struct raw_sock *ro = container_of(nb, struct raw_sock, notifier);
        struct sock *sk = &ro->sk;
 
-       if (dev_net(dev) != &init_net)
+       if (!net_eq(dev_net(dev), &init_net))
                return NOTIFY_DONE;
 
        if (dev->type != ARPHRD_CAN)
@@ -435,15 +435,13 @@ static int raw_setsockopt(struct socket *sock, int level, int optname,
                        if (!filter)
                                return -ENOMEM;
 
-                       err = copy_from_user(filter, optval, optlen);
-                       if (err) {
+                       if (copy_from_user(filter, optval, optlen)) {
                                kfree(filter);
-                               return err;
+                               return -EFAULT;
                        }
                } else if (count == 1) {
-                       err = copy_from_user(&sfilter, optval, optlen);
-                       if (err)
-                               return err;
+                       if (copy_from_user(&sfilter, optval, optlen))
+                               return -EFAULT;
                }
 
                lock_sock(sk);
@@ -493,9 +491,8 @@ static int raw_setsockopt(struct socket *sock, int level, int optname,
                if (optlen != sizeof(err_mask))
                        return -EINVAL;
 
-               err = copy_from_user(&err_mask, optval, optlen);
-               if (err)
-                       return err;
+               if (copy_from_user(&err_mask, optval, optlen))
+                       return -EFAULT;
 
                err_mask &= CAN_ERR_MASK;
 
@@ -531,7 +528,8 @@ static int raw_setsockopt(struct socket *sock, int level, int optname,
                if (optlen != sizeof(ro->loopback))
                        return -EINVAL;
 
-               err = copy_from_user(&ro->loopback, optval, optlen);
+               if (copy_from_user(&ro->loopback, optval, optlen))
+                       return -EFAULT;
 
                break;
 
@@ -539,7 +537,8 @@ static int raw_setsockopt(struct socket *sock, int level, int optname,
                if (optlen != sizeof(ro->recv_own_msgs))
                        return -EINVAL;
 
-               err = copy_from_user(&ro->recv_own_msgs, optval, optlen);
+               if (copy_from_user(&ro->recv_own_msgs, optval, optlen))
+                       return -EFAULT;
 
                break;
 
@@ -633,6 +632,9 @@ static int raw_sendmsg(struct kiocb *iocb, struct socket *sock,
        } else
                ifindex = ro->ifindex;
 
+       if (size != sizeof(struct can_frame))
+               return -EINVAL;
+
        dev = dev_get_by_index(&init_net, ifindex);
        if (!dev)
                return -ENXIO;