[PATCH 4.14 012/146] ubi: Initialize Fastmap checkmapping correctly
From: Greg Kroah-Hartman
Date: Tue Dec 04 2018 - 06:24:03 EST
4.14-stable review patch. If anyone has any objections, please let me know.
------------------
commit 25677478474a91fa1b46f19a4a591a9848bca6fb upstream
We cannot do it last, otherwithse it will be skipped for dynamic
volumes.
Reported-by: Lachmann, Juergen <juergen.lachmann@xxxxxxxxxx>
Fixes: 34653fd8c46e ("ubi: fastmap: Check each mapping only once")
Signed-off-by: Richard Weinberger <richard@xxxxxx>
Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/mtd/ubi/vtbl.c | 20 ++++++++++----------
1 file changed, 10 insertions(+), 10 deletions(-)
diff --git a/drivers/mtd/ubi/vtbl.c b/drivers/mtd/ubi/vtbl.c
index 94d7a865b135..7504f430c011 100644
--- a/drivers/mtd/ubi/vtbl.c
+++ b/drivers/mtd/ubi/vtbl.c
@@ -578,6 +578,16 @@ static int init_volumes(struct ubi_device *ubi,
vol->ubi = ubi;
reserved_pebs += vol->reserved_pebs;
+ /*
+ * We use ubi->peb_count and not vol->reserved_pebs because
+ * we want to keep the code simple. Otherwise we'd have to
+ * resize/check the bitmap upon volume resize too.
+ * Allocating a few bytes more does not hurt.
+ */
+ err = ubi_fastmap_init_checkmap(vol, ubi->peb_count);
+ if (err)
+ return err;
+
/*
* In case of dynamic volume UBI knows nothing about how many
* data is stored there. So assume the whole volume is used.
@@ -620,16 +630,6 @@ static int init_volumes(struct ubi_device *ubi,
(long long)(vol->used_ebs - 1) * vol->usable_leb_size;
vol->used_bytes += av->last_data_size;
vol->last_eb_bytes = av->last_data_size;
-
- /*
- * We use ubi->peb_count and not vol->reserved_pebs because
- * we want to keep the code simple. Otherwise we'd have to
- * resize/check the bitmap upon volume resize too.
- * Allocating a few bytes more does not hurt.
- */
- err = ubi_fastmap_init_checkmap(vol, ubi->peb_count);
- if (err)
- return err;
}
/* And add the layout volume */
--
2.17.1