pfg 70b5d15970 ext2_htree_release(): prevent signed integer overflow in a loop.
h_levels_num, as most data structs in ext2fs, is unsigned so
the index that addresses it has to be unsigned as well.

To get to overflow here we would probably be considering a
degenerate case though.

MFC after:	5 days
2016-04-23 18:28:59 +00:00
..
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