[ 033/221] SCSI: qla2xxx: Properly set result field of bsg_job reply structure for success and failure.

Greg Kroah-Hartman
2013-01-15T18:56:58Z

From: Armen Baloyan <armen.baloyan@qlogic.com>

commit 63ea923a97cb0d78efcbbd229950e101588f0ddb upstream.

FC transport on receiving bsg_job submission failure, calls bsg_job->job_done()
and sets the bsg_job->reply->result the returned value. In contrast, when the
success code (0) is returned fc transport doesn't call bsg_job->job_done() and
doesn't populate bsg_job->reply->result.

Signed-off-by: Steve Hodgson <steve@purestorage.com>
Signed-off-by: Armen Baloyan <armen.baloyan@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
drivers/scsi/qla2xxx/qla_bsg.c | 65 +++++++++++++++--------------------------
1 file changed, 24 insertions(+), 41 deletions(-)

--- a/drivers/scsi/qla2xxx/qla_bsg.c
+++ b/drivers/scsi/qla2xxx/qla_bsg.c
@@ -219,7 +219,8 @@ qla24xx_proc_fcp_prio_cfg_cmd(struct fc_
break;
}
exit_fcp_prio_cfg:
- bsg_job->job_done(bsg_job);
+ if (!ret)
+ bsg_job->job_done(bsg_job);
return ret;
}

@@ -741,7 +742,6 @@ qla2x00_process_loopback(struct fc_bsg_j
if (qla81xx_get_port_config(vha, config)) {
ql_log(ql_log_warn, vha, 0x701f,
"Get port config failed.\n");
- bsg_job->reply->result = (DID_ERROR << 16);
rval = -EPERM;
goto done_free_dma_req;
}
@@ -761,7 +761,6 @@ qla2x00_process_loopback(struct fc_bsg_j
new_config, elreq.options);

if (rval) {
- bsg_job->reply->result = (DID_ERROR << 16);
rval = -EPERM;
goto done_free_dma_req;
}
@@ -795,7 +794,6 @@ qla2x00_process_loopback(struct fc_bsg_j
"MPI reset failed.\n");
}

- bsg_job->reply->result = (DID_ERROR << 16);
rval = -EIO;
goto done_free_dma_req;
}
@@ -812,33 +810,25 @@ qla2x00_process_loopback(struct fc_bsg_j
ql_log(ql_log_warn, vha, 0x702c,
"Vendor request %s failed.\n", type);

- fw_sts_ptr = ((uint8_t *)bsg_job->req->sense) +
- sizeof(struct fc_bsg_reply);
-
- memcpy(fw_sts_ptr, response, sizeof(response));
- fw_sts_ptr += sizeof(response);
- *fw_sts_ptr = command_sent;
rval = 0;
bsg_job->reply->result = (DID_ERROR << 16);
+ bsg_job->reply->reply_payload_rcv_len = 0;
} else {
ql_dbg(ql_dbg_user, vha, 0x702d,
"Vendor request %s completed.\n", type);
-
- bsg_job->reply_len = sizeof(struct fc_bsg_reply) +
- sizeof(response) + sizeof(uint8_t);
- bsg_job->reply->reply_payload_rcv_len =
- bsg_job->reply_payload.payload_len;
- fw_sts_ptr = ((uint8_t *)bsg_job->req->sense) +
- sizeof(struct fc_bsg_reply);
- memcpy(fw_sts_ptr, response, sizeof(response));
- fw_sts_ptr += sizeof(response);
- *fw_sts_ptr = command_sent;
- bsg_job->reply->result = DID_OK;
+ bsg_job->reply->result = (DID_OK << 16);
sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
bsg_job->reply_payload.sg_cnt, rsp_data,
rsp_data_len);
}
- bsg_job->job_done(bsg_job);
+
+ bsg_job->reply_len = sizeof(struct fc_bsg_reply) +
+ sizeof(response) + sizeof(uint8_t);
+ fw_sts_ptr = ((uint8_t *)bsg_job->req->sense) +
+ sizeof(struct fc_bsg_reply);
+ memcpy(fw_sts_ptr, response, sizeof(response));
+ fw_sts_ptr += sizeof(response);
+ *fw_sts_ptr = command_sent;

dma_free_coherent(&ha->pdev->dev, rsp_data_len,
rsp_data, rsp_data_dma);
@@ -853,6 +843,8 @@ done_unmap_req_sg:
dma_unmap_sg(&ha->pdev->dev,
bsg_job->request_payload.sg_list,
bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
+ if (!rval)
+ bsg_job->job_done(bsg_job);
return rval;
}

@@ -877,16 +869,15 @@ qla84xx_reset(struct fc_bsg_job *bsg_job
if (rval) {
ql_log(ql_log_warn, vha, 0x7030,
"Vendor request 84xx reset failed.\n");
- rval = 0;
- bsg_job->reply->result = (DID_ERROR << 16);
+ rval = (DID_ERROR << 16);

} else {
ql_dbg(ql_dbg_user, vha, 0x7031,
"Vendor request 84xx reset completed.\n");
bsg_job->reply->result = DID_OK;
+ bsg_job->job_done(bsg_job);
}

- bsg_job->job_done(bsg_job);
return rval;
}

@@ -976,8 +967,7 @@ qla84xx_updatefw(struct fc_bsg_job *bsg_
ql_log(ql_log_warn, vha, 0x7037,
"Vendor request 84xx updatefw failed.\n");

- rval = 0;
- bsg_job->reply->result = (DID_ERROR << 16);
+ rval = (DID_ERROR << 16);
} else {
ql_dbg(ql_dbg_user, vha, 0x7038,
"Vendor request 84xx updatefw completed.\n");
@@ -986,7 +976,6 @@ qla84xx_updatefw(struct fc_bsg_job *bsg_
bsg_job->reply->result = DID_OK;
}

- bsg_job->job_done(bsg_job);
dma_pool_free(ha->s_dma_pool, mn, mn_dma);

done_free_fw_buf:
@@ -996,6 +985,8 @@ done_unmap_sg:
dma_unmap_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list,
bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);

+ if (!rval)
+ bsg_job->job_done(bsg_job);
return rval;
}

@@ -1163,8 +1154,7 @@ qla84xx_mgmt_cmd(struct fc_bsg_job *bsg_
ql_log(ql_log_warn, vha, 0x7043,
"Vendor request 84xx mgmt failed.\n");

- rval = 0;
- bsg_job->reply->result = (DID_ERROR << 16);
+ rval = (DID_ERROR << 16);

} else {
ql_dbg(ql_dbg_user, vha, 0x7044,
@@ -1184,8 +1174,6 @@ qla84xx_mgmt_cmd(struct fc_bsg_job *bsg_
}
}

- bsg_job->job_done(bsg_job);
-
done_unmap_sg:
if (mgmt_b)
dma_free_coherent(&ha->pdev->dev, data_len, mgmt_b, mgmt_dma);
@@ -1200,6 +1188,8 @@ done_unmap_sg:
exit_mgmt:
dma_pool_free(ha->s_dma_pool, mn, mn_dma);

+ if (!rval)
+ bsg_job->job_done(bsg_job);
return rval;
}

@@ -1276,9 +1266,7 @@ qla24xx_iidma(struct fc_bsg_job *bsg_job
fcport->port_name[3], fcport->port_name[4],
fcport->port_name[5], fcport->port_name[6],
fcport->port_name[7], rval, fcport->fp_speed, mb[0], mb[1]);
- rval = 0;
- bsg_job->reply->result = (DID_ERROR << 16);
-
+ rval = (DID_ERROR << 16);
} else {
if (!port_param->mode) {
bsg_job->reply_len = sizeof(struct fc_bsg_reply) +
@@ -1292,9 +1280,9 @@ qla24xx_iidma(struct fc_bsg_job *bsg_job
}

bsg_job->reply->result = DID_OK;
+ bsg_job->job_done(bsg_job);
}

- bsg_job->job_done(bsg_job);
return rval;
}

@@ -1887,8 +1875,6 @@ qla2x00_process_vendor_specific(struct f
return qla24xx_process_bidir_cmd(bsg_job);

default:
- bsg_job->reply->result = (DID_ERROR << 16);
- bsg_job->job_done(bsg_job);
return -ENOSYS;
}
}
@@ -1919,8 +1905,6 @@ qla24xx_bsg_request(struct fc_bsg_job *b
ql_dbg(ql_dbg_user, vha, 0x709f,
"BSG: ISP abort active/needed -- cmd=%d.\n",
bsg_job->request->msgcode);
- bsg_job->reply->result = (DID_ERROR << 16);
- bsg_job->job_done(bsg_job);
return -EBUSY;
}

@@ -1943,7 +1927,6 @@ qla24xx_bsg_request(struct fc_bsg_job *b
case FC_BSG_RPT_CT:
default:
ql_log(ql_log_warn, vha, 0x705a, "Unsupported BSG request.\n");
- bsg_job->reply->result = ret;
break;
}
return ret;