UBI: Fastmap: Switch to ro mode if invalidate_fastmap() fails

We have to switch to ro mode to guarantee that upon next UBI attach
all data is consistent.

Signed-off-by: Richard Weinberger <richard@nod.at>

diff --git a/drivers/mtd/ubi/fastmap.c b/drivers/mtd/ubi/fastmap.c
index 8b95c48a002d651cf0c63ce89c499260268f638a..3d913f53fd06d016f15dd86663a5dfdd3f3f0ad3 100644 (file)
--- a/drivers/mtd/ubi/fastmap.c
+++ b/drivers/mtd/ubi/fastmap.c
@@ -1466,8 +1466,10 @@ err:
        ret = 0;
        if (old_fm) {
                ret = invalidate_fastmap(ubi, old_fm);
-               if (ret < 0)
+               if (ret < 0) {
                        ubi_err(ubi, "Unable to invalidiate current fastmap!");
+                       ubi_ro_mode(ubi);
+               }
                else if (ret)
                        ret = 0;
        }