1 files changed, 2 insertions, 2 deletions

diff --git a/include/linux/of_dma.h b/include/linux/of_dma.h
index 98ba7525929e..b90d8ec57c1f 100644
--- a/include/linux/of_dma.h
+++ b/include/linux/of_dma.h
@@ -34,7 +34,7 @@ struct of_dma_filter_info {
         dma_filter_fn   filter_fn;
 };
 
-#ifdef CONFIG_OF
+#ifdef CONFIG_DMA_OF
 extern int of_dma_controller_register(struct device_node *np,
                 struct dma_chan *(*of_dma_xlate)
                 (struct of_phandle_args *, struct of_dma *),
@@ -80,7 +80,7 @@ static inline int of_dma_router_register(struct device_node *np,
 static inline struct dma_chan *of_dma_request_slave_channel(struct device_node *np,
                                                      const char *name)
 {
-        return NULL;
+        return ERR_PTR(-ENODEV);
 }
 
 static inline struct dma_chan *of_dma_simple_xlate(struct of_phandle_args *dma_spec,