[SCSI] qla2xxx: Pull-down scsi-host-addition to follow board initialization.

Return to previous held-logic of calling scsi_add_host() only
after the board has been completely initialized.  Also return
pci_*() error-codes during probe failure paths.

This also corrects an issue where only lun 0 is being scanned for
a given port.
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

drivers/scsi/qla2xxx/qla_os.c

@@ -1150,7 +1150,7 @@ qla2x00_iospace_config(scsi_qla_host_t *ha)
  */
 int qla2x00_probe_one(struct pci_dev *pdev, struct qla_board_info *brd_info)
 {
-	int	ret;
+	int	ret = -ENODEV;
 	device_reg_t __iomem *reg;
 	struct Scsi_Host *host;
 	scsi_qla_host_t *ha;
@@ -1161,7 +1161,7 @@ int qla2x00_probe_one(struct pci_dev *pdev, struct qla_board_info *brd_info)
 	fc_port_t *fcport;
 
 	if (pci_enable_device(pdev))
-		return -1;
+		goto probe_out;
 
 	host = scsi_host_alloc(&qla2x00_driver_template,
 	    sizeof(scsi_qla_host_t));
@@ -1183,9 +1183,8 @@ int qla2x00_probe_one(struct pci_dev *pdev, struct qla_board_info *brd_info)
 
 	/* Configure PCI I/O space */
 	ret = qla2x00_iospace_config(ha);
-	if (ret != 0) {
-		goto probe_alloc_failed;
-	}
+	if (ret)
+		goto probe_failed;
 
 	/* Sanitize the information from PCI BIOS. */
 	host->irq = pdev->irq;
@@ -1258,23 +1257,10 @@ int qla2x00_probe_one(struct pci_dev *pdev, struct qla_board_info *brd_info)
 		qla_printk(KERN_WARNING, ha,
 		    "[ERROR] Failed to allocate memory for adapter\n");
 
-		goto probe_alloc_failed;
+		ret = -ENOMEM;
+		goto probe_failed;
 	}
 
-	pci_set_drvdata(pdev, ha);
-	host->this_id = 255;
-	host->cmd_per_lun = 3;
-	host->unique_id = ha->instance;
-	host->max_cmd_len = MAX_CMDSZ;
-	host->max_channel = ha->ports - 1;
-	host->max_id = ha->max_targets;
-	host->max_lun = ha->max_luns;
-	host->transportt = qla2xxx_transport_template;
-	if (scsi_add_host(host, &pdev->dev))
-		goto probe_alloc_failed;
-
-	qla2x00_alloc_sysfs_attr(ha);
-
 	if (qla2x00_initialize_adapter(ha) &&
 	    !(ha->device_flags & DFLG_NO_CABLE)) {
 
@@ -1285,11 +1271,10 @@ int qla2x00_probe_one(struct pci_dev *pdev, struct qla_board_info *brd_info)
 		    "Adapter flags %x.\n",
 		    ha->host_no, ha->device_flags));
 
+		ret = -ENODEV;
 		goto probe_failed;
 	}
 
-	qla2x00_init_host_attr(ha);
-
 	/*
 	 * Startup the kernel thread for this host adapter
 	 */
@@ -1299,17 +1284,26 @@ int qla2x00_probe_one(struct pci_dev *pdev, struct qla_board_info *brd_info)
 		qla_printk(KERN_WARNING, ha,
 		    "Unable to start DPC thread!\n");
 
+		ret = -ENODEV;
 		goto probe_failed;
 	}
 	wait_for_completion(&ha->dpc_inited);
 
+	host->this_id = 255;
+	host->cmd_per_lun = 3;
+	host->unique_id = ha->instance;
+	host->max_cmd_len = MAX_CMDSZ;
+	host->max_channel = ha->ports - 1;
+	host->max_lun = MAX_LUNS;
+	host->transportt = qla2xxx_transport_template;
+
 	if (IS_QLA2100(ha) || IS_QLA2200(ha))
 		ret = request_irq(host->irq, qla2100_intr_handler,
 		    SA_INTERRUPT|SA_SHIRQ, ha->brd_info->drv_name, ha);
 	else
 		ret = request_irq(host->irq, qla2300_intr_handler,
 		    SA_INTERRUPT|SA_SHIRQ, ha->brd_info->drv_name, ha);
-	if (ret != 0) {
+	if (ret) {
 		qla_printk(KERN_WARNING, ha,
 		    "Failed to reserve interrupt %d already in use.\n",
 		    host->irq);
@@ -1363,9 +1357,18 @@ int qla2x00_probe_one(struct pci_dev *pdev, struct qla_board_info *brd_info)
 		msleep(10);
 	}
 
+	pci_set_drvdata(pdev, ha);
 	ha->flags.init_done = 1;
 	num_hosts++;
 
+	ret = scsi_add_host(host, &pdev->dev);
+	if (ret)
+		goto probe_failed;
+
+	qla2x00_alloc_sysfs_attr(ha);
+
+	qla2x00_init_host_attr(ha);
+
 	qla_printk(KERN_INFO, ha, "\n"
 	    " QLogic Fibre Channel HBA Driver: %s\n"
 	    "  QLogic %s - %s\n"
@@ -1384,9 +1387,6 @@ int qla2x00_probe_one(struct pci_dev *pdev, struct qla_board_info *brd_info)
 probe_failed:
 	fc_remove_host(ha->host);
 
-	scsi_remove_host(host);
-
-probe_alloc_failed:
 	qla2x00_free_device(ha);
 
 	scsi_host_put(host);
@@ -1394,7 +1394,8 @@ int qla2x00_probe_one(struct pci_dev *pdev, struct qla_board_info *brd_info)
 probe_disable_device:
 	pci_disable_device(pdev);
 
-	return -1;
+probe_out:
+	return ret;
 }
 EXPORT_SYMBOL_GPL(qla2x00_probe_one);