diff --git a/drivers/firmware/efi/memmap.c b/drivers/firmware/efi/memmap.c
index 4df55a55da841117568a05783921b4ed5a4b64e1..cf87dd7bbd25f50915dc4495fa931fd55c9839b2 100644
--- a/drivers/firmware/efi/memmap.c
+++ b/drivers/firmware/efi/memmap.c
@@ -59,8 +59,7 @@ static void __init efi_memmap_free(void)
  * Depending on whether mm_init() has already been invoked or not,
  * either memblock or "normal" page allocation is used.
  *
- * Returns the physical address of the allocated memory map on
- * success, zero on failure.
+ * Returns zero on success, a negative error code on failure.
  */
 int __init efi_memmap_alloc(unsigned int num_entries,
 		struct efi_memory_map_data *data)