tree f0d20f339872dfcb613b4418f752e3eae5578e12
parent 042745ee53a0a7c1f5aff191a4a24213c6dcfb52
author Junichi Nomura <j-nomura@ce.jp.nec.com> 1444105194 +0000
committer Mike Snitzer <snitzer@redhat.com> 1444140496 -0400

dm: fix request-based dm error reporting

end_clone_bio() is a endio callback for clone bio and should check
and save the clone's bi_error for error reporting.  However,
4246a0b63bd8 ("block: add a bi_error field to struct bio") changed
the function to check the original bio's bi_error, which is 0.

Without this fix, clone's error is ignored and reported to the
original request as success.  Thus data corruption will be observed.

Fixes: 4246a0b63bd8 ("block: add a bi_error field to struct bio")
Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>