Merge branch 'topic/of' into for-linus

drivers/dma/dmaengine.c

@@ -514,16 +514,16 @@ struct dma_chan *dma_get_slave_channel(struct dma_chan *chan)
 	/* lock against __dma_request_channel */
 	mutex_lock(&dma_list_mutex);
 
-	if (chan->client_count == 0)
+	if (chan->client_count == 0) {
 		err = dma_chan_get(chan);
-	else
+		if (err)
+			pr_debug("%s: failed to get %s: (%d)\n",
+				__func__, dma_chan_name(chan), err);
+	} else
 		chan = NULL;
 
 	mutex_unlock(&dma_list_mutex);
 
-	if (err)
-		pr_debug("%s: failed to get %s: (%d)\n",
-			__func__, dma_chan_name(chan), err);
 
 	return chan;
 }

drivers/dma/of-dma.c

@@ -160,7 +160,8 @@ struct dma_chan *of_dma_request_slave_channel(struct device_node *np,
 
 	count = of_property_count_strings(np, "dma-names");
 	if (count < 0) {
-		pr_err("%s: dma-names property missing or empty\n", __func__);
+		pr_err("%s: dma-names property of node '%s' missing or empty\n",
+			__func__, np->full_name);
 		return NULL;
 	}