[NET]: Transform skb_queue_len() binary tests into skb_queue_empty()

This is part of the grand scheme to eliminate the qlen
member of skb_queue_head, and subsequently remove the
'list' member of sk_buff.

Most users of skb_queue_len() want to know if the queue is
empty or not, and that's trivially done with skb_queue_empty()
which doesn't use the skb_queue_head->qlen member and instead
uses the queue list emptyness as the test.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 4 deletions

diff --git a/net/bluetooth/cmtp/core.c b/net/bluetooth/cmtp/core.c
index 2e341de3e763..901eff7ebe74 100644
--- a/net/bluetooth/cmtp/core.c
+++ b/net/bluetooth/cmtp/core.c
@@ -213,7 +213,7 @@ static int cmtp_send_frame(struct cmtp_session *session, unsigned char *data, in
         return kernel_sendmsg(sock, &msg, &iv, 1, len);
 }
 
-static int cmtp_process_transmit(struct cmtp_session *session)
+static void cmtp_process_transmit(struct cmtp_session *session)
 {
         struct sk_buff *skb, *nskb;
         unsigned char *hdr;
@@ -223,7 +223,7 @@ static int cmtp_process_transmit(struct cmtp_session *session)
 
         if (!(nskb = alloc_skb(session->mtu, GFP_ATOMIC))) {
                 BT_ERR("Can't allocate memory for new frame");
-                return -ENOMEM;
+                return;
         }
 
         while ((skb = skb_dequeue(&session->transmit))) {
@@ -275,8 +275,6 @@ static int cmtp_process_transmit(struct cmtp_session *session)
         cmtp_send_frame(session, nskb->data, nskb->len);
 
         kfree_skb(nskb);
-
-        return skb_queue_len(&session->transmit);
 }
 
 static int cmtp_session(void *arg)