[RFC PATCH 4/4] UBI: Fastmap: Do not add vol if it already exists

[Richard Weinberger]

Am 21.05.2015 um 12:16 schrieb Richard Weinberger:
> Am 21.05.2015 um 11:56 schrieb Sheng Yong:
>> When writing fastmap, there is no guarantee that two same vol ID are
>> written to flash by mistake. Although this unlikely happens, we still
>> should check it when attaching.
> 
> Not sure if I understand the error scenario.
> How can this happen?

...thought a bit more about that.
I think your fix is correct but unless I'm very
mistaken one can hit the issue only by modifying the fastmap
by hand.

Thanks,
//richard