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[SCSI] scsi dh alua: fix group id masking 

The buf[i] is a byte but we are only asking 4 bits off the
group_id. This patch has us take off a byte.

Signed-off-by: Ilgu Hong <ilgu.hong@promise.com>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This commit is contained in:
Ilgu Hong 2009-01-30 17:00:09 -06:00 committed by James Bottomley
parent f078727b25
commit ef3fa8c6a2
1 changed files with 2 additions and 2 deletions
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4
drivers/scsi/device_handler/scsi_dh_alua.c
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@ -247,8 +247,8 @@ static unsigned submit_stpg(struct scsi_device *sdev, struct alua_dh_data *h)
/* Prepare the data buffer */ /* Prepare the data buffer */
memset(h->buff, 0, stpg_len); memset(h->buff, 0, stpg_len);
h->buff[4] = TPGS_STATE_OPTIMIZED & 0x0f; h->buff[4] = TPGS_STATE_OPTIMIZED & 0x0f;
h->buff[6] = (h->group_id >> 8) & 0x0f; h->buff[6] = (h->group_id >> 8) & 0xff;
h->buff[7] = h->group_id & 0x0f; h->buff[7] = h->group_id & 0xff;
rq = get_alua_req(sdev, h->buff, stpg_len, WRITE); rq = get_alua_req(sdev, h->buff, stpg_len, WRITE);
if (!rq) if (!rq)