[PATCH] UBI: fastmap: Erase outdated anchor PEBs during attach

[Richard Weinberger]

Am Dienstag, 5. Dezember 2017, 16:01:20 CET schrieb Sascha Hauer:
> The fastmap update code might erase the current fastmap anchor PEB
> in case it doesn't find any new free PEB. When a power cut happens
> in this situation we must not have any outdated fastmap anchor PEB
> on the device, because that would be used to attach during next
> boot.
> The easiest way to make that sure is to erase all outdated fastmap
> anchor PEBs synchronously during attach.
> 
> Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>

Reviewed-by: Richard Weinberger <richard at nod.at>

Thanks,
//richard