atmel_lcdfb: fix regression with uninitalized fb_info->mm_lock mutex

[safe/jmp/linux-2.6] / net / ax25 / af_ax25.c

diff --git a/net/ax25/af_ax25.c b/net/ax25/af_ax25.c
index 7da5ebb..da0f64f 100644 (file)
--- a/net/ax25/af_ax25.c
+++ b/net/ax25/af_ax25.c
@@ -330,8 +330,7 @@ void ax25_destroy_socket(ax25_cb *ax25)
        }
 
        if (ax25->sk != NULL) {
-               if (atomic_read(&ax25->sk->sk_wmem_alloc) ||
-                   atomic_read(&ax25->sk->sk_rmem_alloc)) {
+               if (sk_has_allocations(ax25->sk)) {
                        /* Defer: outstanding buffers */
                        setup_timer(&ax25->dtimer, ax25_destroy_timer,
                                        (unsigned long)ax25);
@@ -1435,11 +1434,6 @@ static int ax25_sendmsg(struct kiocb *iocb, struct socket *sock,
        size_t size;
        int lv, err, addr_len = msg->msg_namelen;
 
-       /* AX.25 empty data frame has no meaning : don't send */
-       if (len == 0) {
-               return (0);
-       }
-
        if (msg->msg_flags & ~(MSG_DONTWAIT|MSG_EOR|MSG_CMSG_COMPAT))
                return -EINVAL;
 
@@ -1639,13 +1633,6 @@ static int ax25_recvmsg(struct kiocb *iocb, struct socket *sock,
        skb_reset_transport_header(skb);
        copied = skb->len;
 
-       /* AX.25 empty data frame has no meaning : ignore it */
-       if (copied == 0) {
-               err = copied;
-               skb_free_datagram(sk, skb);
-               goto out;
-       }
-
        if (copied > size) {
                copied = size;
                msg->msg_flags |= MSG_TRUNC;
@@ -1703,7 +1690,8 @@ static int ax25_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
        switch (cmd) {
        case TIOCOUTQ: {
                long amount;
-               amount = sk->sk_sndbuf - atomic_read(&sk->sk_wmem_alloc);
+
+               amount = sk->sk_sndbuf - sk_wmem_alloc_get(sk);
                if (amount < 0)
                        amount = 0;
                res = put_user(amount, (int __user *)argp);
@@ -1793,8 +1781,8 @@ static int ax25_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
                ax25_info.idletimer = ax25_display_timer(&ax25->idletimer) / (60 * HZ);
                ax25_info.n2count   = ax25->n2count;
                ax25_info.state     = ax25->state;
-               ax25_info.rcv_q     = atomic_read(&sk->sk_rmem_alloc);
-               ax25_info.snd_q     = atomic_read(&sk->sk_wmem_alloc);
+               ax25_info.rcv_q     = sk_wmem_alloc_get(sk);
+               ax25_info.snd_q     = sk_rmem_alloc_get(sk);
                ax25_info.vs        = ax25->vs;
                ax25_info.vr        = ax25->vr;
                ax25_info.va        = ax25->va;
@@ -1934,8 +1922,8 @@ static int ax25_info_show(struct seq_file *seq, void *v)
 
        if (ax25->sk != NULL) {
                seq_printf(seq, " %d %d %lu\n",
-                          atomic_read(&ax25->sk->sk_wmem_alloc),
-                          atomic_read(&ax25->sk->sk_rmem_alloc),
+                          sk_wmem_alloc_get(ax25->sk),
+                          sk_rmem_alloc_get(ax25->sk),
                           sock_i_ino(ax25->sk));
        } else {
                seq_puts(seq, " * * *\n");