tree 6d6eb0d66d61ef13a983aa0c1a3b26140fa0a4e9
parent 319c10427498620d220931189dcdba7d4244feba
author Richard Weinberger <richard@nod.at> 1496871215 +0200
committer Richard Weinberger <richard@nod.at> 1500065347 +0200

ubifs: Fail commit if TNC is obviously inconsistent

A reference to LEB 0 or with length 0 in the TNC
is never correct and could be caused by a memory corruption.
Don't write such a bad index node to the MTD.
Instead fail the commit which will turn UBIFS into read-only mode.

This is less painful than having the bad reference on the MTD
from where UBFIS has no chance to recover.

Signed-off-by: Richard Weinberger <richard@nod.at>