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(parent: 0910697) | patch
scatterlist: make sure sg_miter_next() doesn't return 0 sized mappings
authorTejun Heo <tj@kernel.org>
Wed, 15 Apr 2009 13:10:23 +0000 (22:10 +0900)
committerJens Axboe <jens.axboe@oracle.com>
Wed, 22 Apr 2009 06:35:09 +0000 (08:35 +0200)
commit23c560a99d78bddf5c251bfa97bce19e4da4b3f3
tree5c86aecb937ec49effaaf7cca526baf36c9c3eaftree | snapshot
parent091069740304c979f957ceacec39c461d0192158commit | diff
scatterlist: make sure sg_miter_next() doesn't return 0 sized mappings

Impact: fix not-so-critical but annoying bug

sg_miter_next() returns 0 sized mapping if there is an zero sized sg
entry in the list or at the end of each iteration.  As the users
always check the ->length field, this bug shouldn't be critical other
than causing unnecessary iteration.

Fix it.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
lib/scatterlist.c diff | blob | history
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