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-rw-r--r--drivers/mtd/ubi/wl.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/mtd/ubi/wl.c b/drivers/mtd/ubi/wl.c
index 2b2472300610..600c7229d5cf 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) {
+ ubi_err("new PEB %d does not contain all 0xFF bytes", e->pnum);
+ return err > 0 ? -EINVAL : err;
+ }
+
return e->pnum;
}
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