diff options
| author | Artem Bityutskiy <Artem.Bityutskiy@nokia.com> | 2009-06-28 16:16:55 (GMT) |
|---|---|---|
| committer | Artem Bityutskiy <Artem.Bityutskiy@nokia.com> | 2009-07-05 15:47:03 (GMT) |
| commit | 40a71a87fa8e0cb3ec0fca4d152263734b203eb2 (patch) | |
| tree | 8bdd27304fc4d28c850c76f2b1f4a32c802612f8 /drivers/mtd/ubi/wl.c | |
| parent | 8e4a718ff38d8539938ec3421935904c27e00c39 (diff) | |
| download | linux-fsl-qoriq-40a71a87fa8e0cb3ec0fca4d152263734b203eb2.tar.xz | |
UBI: add empty eraseblocks verification
This patch adds code which makes sure eraseblocks contain all 0xFF
bytes before starting using them. The verification is done only when
debugging checks are enabled.
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Diffstat (limited to 'drivers/mtd/ubi/wl.c')
| -rw-r--r-- | drivers/mtd/ubi/wl.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/mtd/ubi/wl.c b/drivers/mtd/ubi/wl.c index 2b24723..e4be446 100644 --- a/drivers/mtd/ubi/wl.c +++ b/drivers/mtd/ubi/wl.c @@ -459,6 +459,14 @@ retry: dbg_wl("PEB %d EC %d", e->pnum, e->ec); prot_queue_add(ubi, e); spin_unlock(&ubi->wl_lock); + + err = ubi_dbg_check_all_ff(ubi, e->pnum, ubi->vid_hdr_aloffset, + ubi->peb_size - ubi->vid_hdr_aloffset); + if (err) { + dbg_err("new PEB does not contain all 0xFF bytes"); + return err > 0 ? -EINVAL : err; + } + return e->pnum; } |