f2fs: fix overflow due to condition check order

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In the last ilen case, i was already increased, resulting in accessing out-
of-boundary entry of do_replace and blkaddr.
Fix to check ilen first to exit the loop.

Fixes: 2aa8fbb9693020 ("f2fs: refactor __exchange_data_block for speed up")
Cc: stable@vger.kernel.org # 4.8+
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

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Jaegeuk Kim 2016-11-23 10:51:17 -08:00

parent ded9b5dd20

commit e87f7329bb

1 changed files with 1 additions and 1 deletions

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fs/f2fs/file.c

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