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(parent: 7c9f29b) | patch
scatterlist: add more safeguards
authorTejun Heo <htejun@gmail.com>
Tue, 27 Nov 2007 08:30:39 +0000 (09:30 +0100)
committerJens Axboe <jens.axboe@oracle.com>
Tue, 27 Nov 2007 08:30:39 +0000 (09:30 +0100)
commit645a8d94629fd812a220d54876339a1ddafd9bc2
treeea333b0ae1dd478e8a902a3bab780a1c6d673304tree | snapshot
parent7c9f29b128aab5ac95af553e8d8e0e372647f1d5commit | diff
scatterlist: add more safeguards

Add more safeguards to protect against misinterpreting a chain entry
as a normal scatterlist and vice-versa.

* Make sure the entry isn't a chain when assigning and reading a
  normal sg.

* Clear offset and length when chaining.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
include/linux/scatterlist.h diff | blob | history
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