NFC: Return NULL when no LLCP socket for a dsap,ssap couple is found

The previous code was always returning the last socket from the
LLCP socket list.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

diff --git a/net/nfc/llcp/llcp.c b/net/nfc/llcp/llcp.c
index a2da0a4f367d60b856ba9b05a49aaae8228f7efa..285bba8c7afc415d0ed021f894ae667e768c6391 100644 (file)
--- a/net/nfc/llcp/llcp.c
+++ b/net/nfc/llcp/llcp.c
@@ -144,7 +144,7 @@ static struct nfc_llcp_sock *nfc_llcp_sock_get(struct nfc_llcp_local *local,
 {
        struct sock *sk;
        struct hlist_node *node;
-       struct nfc_llcp_sock *llcp_sock;
+       struct nfc_llcp_sock *llcp_sock, *tmp_sock;
 
        pr_debug("ssap dsap %d %d\n", ssap, dsap);
 
@@ -156,10 +156,12 @@ static struct nfc_llcp_sock *nfc_llcp_sock_get(struct nfc_llcp_local *local,
        llcp_sock = NULL;
 
        sk_for_each(sk, node, &local->sockets.head) {
-               llcp_sock = nfc_llcp_sock(sk);
+               tmp_sock = nfc_llcp_sock(sk);
 
-               if (llcp_sock->ssap == ssap && llcp_sock->dsap == dsap)
+               if (tmp_sock->ssap == ssap && tmp_sock->dsap == dsap) {
+                       llcp_sock = tmp_sock;
                        break;
+               }
        }
 
        read_unlock(&local->sockets.lock);
@@ -1073,7 +1075,7 @@ static void nfc_llcp_recv_dm(struct nfc_llcp_local *local, struct sk_buff *skb)
        }
 
        if (llcp_sock == NULL) {
-               pr_err("Invalid DM\n");
+               pr_debug("Already closed\n");
                return;
        }