diff --git a/[refs] b/[refs]
index fb194b8a95c0..b3efa7b46c97 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 6e5267aa543817015edb4a65c66e15f9809f92bd
+refs/heads/master: fb71285f0c1633a85544784aae7577502274b77a
diff --git a/trunk/arch/arm/mm/dma-mapping.c b/trunk/arch/arm/mm/dma-mapping.c
index d1cc9c1d3566..acced9332109 100644
--- a/trunk/arch/arm/mm/dma-mapping.c
+++ b/trunk/arch/arm/mm/dma-mapping.c
@@ -461,6 +461,10 @@ static void *__alloc_from_pool(size_t size, struct page **ret_page)
 		bitmap_set(pool->bitmap, pageno, count);
 		ptr = pool->vaddr + PAGE_SIZE * pageno;
 		*ret_page = pool->page + pageno;
+	} else {
+		pr_err_once("ERROR: %u KiB atomic DMA coherent pool is too small!\n"
+			    "Please increase it with coherent_pool= kernel parameter!\n",
+			    (unsigned)pool->size / 1024);
 	}
 	spin_unlock_irqrestore(&pool->lock, flags);