There is a minor bug in yaffs_mtdif2.c when converting from blockNo to
mtd offsets. If the offset ends up being > 2^31-1, then it gets
converted to a negative number, and then the loff_t gets stuff up.
However in general mtd supports up to 4GB (in theory, although I've
found a bunch of other things that make this difficult).

Anyway, I've attached a pretty trivial patch which adds a simple 2 line
conversion function, and calls this when necessary.

Andre

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       Andre Renaud                             Bluewater Systems Ltd
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