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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-05-03 00:52:35 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-05-03 00:52:35 +0400 |
| commit | d626e3bf728c47746f2129aa00c775d4e8c2a73b (patch) | |
| tree | 551a8c362c7b9833e7848bc6167cf322f75563a1 /block/bsg.c | |
| parent | b66e1f11ebc429569a3784aaf64123633d9e3ed1 (diff) | |
| parent | 7ad4a485002c141f156a014e89542e01e7f8e36a (diff) | |
| download | linux-d626e3bf728c47746f2129aa00c775d4e8c2a73b.tar.xz | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6:
[SCSI] aic94xx: fix section mismatch
[SCSI] u14-34f: Fix 32bit only problem
[SCSI] dpt_i2o: sysfs code
[SCSI] dpt_i2o: 64 bit support
[SCSI] dpt_i2o: move from virt_to_bus/bus_to_virt to dma_alloc_coherent
[SCSI] dpt_i2o: use standard __init / __exit code
[SCSI] megaraid_sas: fix suspend/resume sections
[SCSI] aacraid: Add Power Management support
[SCSI] aacraid: Fix jbod operations scan issues
[SCSI] aacraid: Fix warning about macro side-effects
[SCSI] add support for variable length extended commands
[SCSI] Let scsi_cmnd->cmnd use request->cmd buffer
[SCSI] bsg: add large command support
[SCSI] aacraid: Fix down_interruptible() to check the return value correctly
[SCSI] megaraid_sas; Update the Version and Changelog
[SCSI] ibmvscsi: Handle non SCSI error status
[SCSI] bug fix for free list handling
[SCSI] ipr: Rename ipr's state scsi host attribute to prevent collisions
[SCSI] megaraid_mbox: fix Dell CERC firmware problem
Diffstat (limited to 'block/bsg.c')
| -rw-r--r-- | block/bsg.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/block/bsg.c b/block/bsg.c index fa796b605f55..f0b7cd343216 100644 --- a/block/bsg.c +++ b/block/bsg.c @@ -174,7 +174,11 @@ unlock: static int blk_fill_sgv4_hdr_rq(struct request_queue *q, struct request *rq, struct sg_io_v4 *hdr, int has_write_perm) { - memset(rq->cmd, 0, BLK_MAX_CDB); /* ATAPI hates garbage after CDB */ + if (hdr->request_len > BLK_MAX_CDB) { + rq->cmd = kzalloc(hdr->request_len, GFP_KERNEL); + if (!rq->cmd) + return -ENOMEM; + } if (copy_from_user(rq->cmd, (void *)(unsigned long)hdr->request, hdr->request_len)) @@ -211,8 +215,6 @@ bsg_validate_sgv4_hdr(struct request_queue *q, struct sg_io_v4 *hdr, int *rw) if (hdr->guard != 'Q') return -EINVAL; - if (hdr->request_len > BLK_MAX_CDB) - return -EINVAL; if (hdr->dout_xfer_len > (q->max_sectors << 9) || hdr->din_xfer_len > (q->max_sectors << 9)) return -EIO; @@ -302,6 +304,8 @@ bsg_map_hdr(struct bsg_device *bd, struct sg_io_v4 *hdr) } return rq; out: + if (rq->cmd != rq->__cmd) + kfree(rq->cmd); blk_put_request(rq); if (next_rq) { blk_rq_unmap_user(next_rq->bio); @@ -455,6 +459,8 @@ static int blk_complete_sgv4_hdr_rq(struct request *rq, struct sg_io_v4 *hdr, ret = rq->errors; blk_rq_unmap_user(bio); + if (rq->cmd != rq->__cmd) + kfree(rq->cmd); blk_put_request(rq); return ret; |