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rsxx: Adapter address space sanity check.

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Adding a sanity check to guarentee that DMAs outside of the device's
address space will be errored out right away.

Signed-off-by: Philip J Kelleher <pjk1939@linux.vnet.ibm.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Philip J Kelleher 2013-06-18 14:48:38 -05:00 committed by Jens Axboe
parent 66bc600363
commit 3eb8dcafb5
1 changed files with 3 additions and 0 deletions
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3
drivers/block/rsxx/dev.c
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@ -174,6 +174,9 @@ static void rsxx_make_request(struct request_queue *q, struct bio *bio)
if (!card) if (!card)
goto req_err; goto req_err;
if (bio->bi_sector + (bio->bi_size >> 9) > get_capacity(card->gendisk))
goto req_err;
if (unlikely(card->halt)) { if (unlikely(card->halt)) {
st = -EFAULT; st = -EFAULT;
goto req_err; goto req_err;