[PATCH 1/3] UBI: Fastmap: Document return codes.

[Richard Weinberger]

Signed-off-by: Richard Weinberger <richard at nod.at>
---
 drivers/mtd/ubi/attach.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/drivers/mtd/ubi/attach.c b/drivers/mtd/ubi/attach.c
index a343a41..106aa01 100644
--- a/drivers/mtd/ubi/attach.c
+++ b/drivers/mtd/ubi/attach.c
@@ -1305,6 +1305,11 @@ out_ech:
  * scan_fastmap - try to find a fastmap and attach from it.
  * @ubi: UBI device description object
  * @ai: attach info object
+ *
+ * Returns 0 on success, negative return values indicate an internal
+ * error.
+ * UBI_NO_FASTMAP denotes that no fastmap was found.
+ * UBI_BAD_FASTMAP denotes that the found fastmap was invalid.
  */
 static int scan_fast(struct ubi_device *ubi, struct ubi_attach_info *ai)
 {
-- 
1.7.6.5