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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-12-20 09:19:46 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-12-20 09:19:46 -0800 |
| commit | 7f8635cc9e66a26d7280ba680b044fa2f65104af (patch) | |
| tree | 0d8506e86d07e15c473aca1a09af7ad6ff7d8b49 /block/blk-map.c | |
| parent | 3cb50ddf97a0a1ca4c68bc12fa1e727a6b45fbf2 (diff) | |
| parent | 0fc13c8995cd96f4123de400c71c223d80400ed9 (diff) | |
Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block
* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
cciss: fix cciss_revalidate panic
block: max hardware sectors limit wrapper
block: Deprecate QUEUE_FLAG_CLUSTER and use queue_limits instead
blk-throttle: Correct the placement of smp_rmb()
blk-throttle: Trim/adjust slice_end once a bio has been dispatched
block: check for proper length of iov entries earlier in blk_rq_map_user_iov()
drbd: fix for spin_lock_irqsave in endio callback
drbd: don't recvmsg with zero length
Diffstat (limited to 'block/blk-map.c')
| -rw-r--r-- | block/blk-map.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/block/blk-map.c b/block/blk-map.c index 5d5dbe47c22..e663ac2d8e6 100644 --- a/block/blk-map.c +++ b/block/blk-map.c @@ -201,12 +201,13 @@ int blk_rq_map_user_iov(struct request_queue *q, struct request *rq, for (i = 0; i < iov_count; i++) { unsigned long uaddr = (unsigned long)iov[i].iov_base; + if (!iov[i].iov_len) + return -EINVAL; + if (uaddr & queue_dma_alignment(q)) { unaligned = 1; break; } - if (!iov[i].iov_len) - return -EINVAL; } if (unaligned || (q->dma_pad_mask & len) || map_data) |