On Wed, 13 Jun 2018 23:23:39 +0200 Richard Weinberger <[email protected]> wrote:
> While attaching via fastmap we verify whether the found fastmap > is as large as we have computed. > With preseeded Fastmaps this assumtion can fail since ubinize cannot > know the total size of the MTD and uses the number if used PEBs for > the calculation. > Therefore the found fastmap might be smaller than the kernel expects. > > Signed-off-by: Richard Weinberger <[email protected]> Reviewed-by: Boris Brezillon <[email protected]> > --- > drivers/mtd/ubi/fastmap.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/mtd/ubi/fastmap.c b/drivers/mtd/ubi/fastmap.c > index 09a9d3a0ccf5..dabeb01af24a 100644 > --- a/drivers/mtd/ubi/fastmap.c > +++ b/drivers/mtd/ubi/fastmap.c > @@ -1168,7 +1168,7 @@ int ubi_scan_fastmap(struct ubi_device *ubi, struct > ubi_attach_info *ai, > } > > fm_size = ubi->leb_size * used_blocks; > - if (fm_size != ubi->fm_size) { > + if (fm_size > ubi->fm_size) { > ubi_err(ubi, "bad fastmap size: %zi, expected: %zi", > fm_size, ubi->fm_size); > ret = UBI_BAD_FASTMAP;
