diff --git a/kernel/dma/coherent.c b/kernel/dma/coherent.c
index 480dd1766ece..5e005e0679f8 100644
--- a/kernel/dma/coherent.c
+++ b/kernel/dma/coherent.c
@@ -69,8 +69,8 @@ static struct dma_coherent_mem *dma_init_coherent_memory(phys_addr_t phys_addr,
 	kfree(dma_mem);
 out_unmap_membase:
 	memunmap(mem_base);
-	pr_err("Reserved memory: failed to init DMA memory pool at %pa, size %zd MiB\n",
-		&phys_addr, size / SZ_1M);
+	pr_err("Reserved memory: failed to init DMA memory pool at %pa, size %zu KiB\n",
+		&phys_addr, size / SZ_1K);
 	return ERR_PTR(-ENOMEM);
 }
 
@@ -384,8 +384,8 @@ static int __init rmem_dma_setup(unsigned long node, struct reserved_mem *rmem)
 	}
 #endif
 
-	pr_info("Reserved memory: created DMA memory pool at %pa, size %ld MiB\n",
-		&rmem->base, (unsigned long)rmem->size / SZ_1M);
+	pr_info("Reserved memory: created DMA memory pool at %pa, size %llu KiB\n",
+		&rmem->base, (unsigned long long)(rmem->size / SZ_1K));
 	return 0;
 }