aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--arch/arm/mm/dma-mapping.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index d1cc9c1d3566..acced9332109 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/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);