caif: Minor fixes in log prints.

Use pr_debug for flow control printouts, and refine an error printout.
Signed-off-by: NSjur Braendeland <sjur.brandeland@stericsson.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/caif/caif_socket.c

@@ -159,9 +159,7 @@ static int caif_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
 
 	if (atomic_read(&sk->sk_rmem_alloc) + skb->truesize >=
 		(unsigned)sk->sk_rcvbuf && rx_flow_is_on(cf_sk)) {
-		trace_printk("CAIF: %s(): "
-			"sending flow OFF (queue len = %d %d)\n",
-			__func__,
+		pr_debug("sending flow OFF (queue len = %d %d)\n",
 			atomic_read(&cf_sk->sk.sk_rmem_alloc),
 			sk_rcvbuf_lowwater(cf_sk));
 		set_rx_flow_off(cf_sk);
@@ -174,9 +172,7 @@ static int caif_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
 		return err;
 	if (!sk_rmem_schedule(sk, skb->truesize) && rx_flow_is_on(cf_sk)) {
 		set_rx_flow_off(cf_sk);
-		trace_printk("CAIF: %s(): "
-			"sending flow OFF due to rmem_schedule\n",
-			__func__);
+		pr_debug("sending flow OFF due to rmem_schedule\n");
 		dbfs_atomic_inc(&cnt.num_rx_flow_off);
 		caif_flow_ctrl(sk, CAIF_MODEMCMD_FLOW_OFF_REQ);
 	}

net/caif/cfcnfg.c

@@ -197,7 +197,7 @@ int cfcnfg_disconn_adapt_layer(struct cfcnfg *cnfg, struct cflayer *adap_layer)
 	caif_assert(adap_layer != NULL);
 	channel_id = adap_layer->id;
 	if (adap_layer->dn == NULL || channel_id == 0) {
-		pr_err("adap_layer->id is 0\n");
+		pr_err("adap_layer->dn == NULL or adap_layer->id is 0\n");
 		ret = -ENOTCONN;
 		goto end;
 	}