diff options
Diffstat (limited to 'block')
| -rw-r--r-- | block/bsg.c | 12 | ||||
| -rw-r--r-- | block/scsi_ioctl.c | 5 |
2 files changed, 11 insertions, 6 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; diff --git a/block/scsi_ioctl.c b/block/scsi_ioctl.c index ffa3720e6ca0..78199c08ec92 100644 --- a/block/scsi_ioctl.c +++ b/block/scsi_ioctl.c @@ -33,13 +33,12 @@ #include <scsi/scsi_cmnd.h> /* Command group 3 is reserved and should never be used. */ -const unsigned char scsi_command_size[8] = +const unsigned char scsi_command_size_tbl[8] = { 6, 10, 10, 12, 16, 12, 10, 10 }; - -EXPORT_SYMBOL(scsi_command_size); +EXPORT_SYMBOL(scsi_command_size_tbl); #include <scsi/sg.h> |