net: add build-time checks for msg->msg_name size

[deliverable/linux.git] / drivers / isdn / mISDN / socket.c

diff --git a/drivers/isdn/mISDN/socket.c b/drivers/isdn/mISDN/socket.c
index 5cefb479c7072359c5c7289d68063925da39797c..1be82284cf9dfaa8ab5f5078bed78c3aec095ed3 100644 (file)
--- a/drivers/isdn/mISDN/socket.c
+++ b/drivers/isdn/mISDN/socket.c
@@ -135,7 +135,7 @@ mISDN_sock_recvmsg(struct kiocb *iocb, struct socket *sock,
                return err;
 
        if (msg->msg_name) {
-               struct sockaddr_mISDN *maddr = msg->msg_name;
+               DECLARE_SOCKADDR(struct sockaddr_mISDN *, maddr, msg->msg_name);
 
                maddr->family = AF_ISDN;
                maddr->dev = _pms(sk)->dev->id;
@@ -179,7 +179,6 @@ mISDN_sock_sendmsg(struct kiocb *iocb, struct socket *sock,
        struct sock             *sk = sock->sk;
        struct sk_buff          *skb;
        int                     err = -ENOMEM;
-       struct sockaddr_mISDN   *maddr;
 
        if (*debug & DEBUG_SOCKET)
                printk(KERN_DEBUG "%s: len %d flags %x ch %d proto %x\n",
@@ -214,7 +213,7 @@ mISDN_sock_sendmsg(struct kiocb *iocb, struct socket *sock,
 
        if (msg->msg_namelen >= sizeof(struct sockaddr_mISDN)) {
                /* if we have a address, we use it */
-               maddr = (struct sockaddr_mISDN *)msg->msg_name;
+               DECLARE_SOCKADDR(struct sockaddr_mISDN *, maddr, msg->msg_name);
                mISDN_HEAD_ID(skb) = maddr->channel;
        } else { /* use default for L2 messages */
                if ((sk->sk_protocol == ISDN_P_LAPD_TE) ||