be2iscsi : Fix the PCI request region reserving.

 Reserve device PCI I/O and Memory resources.
Signed-off-by: NJohn Soni Jose <sony.john-n@emulex.com>
Signed-off-by: NJayamohan Kallickal <jayamohan.kallickal@emulex.com>
Reviewed-by: NMike Christie <michaelc@cs.wisc.edu>
Signed-off-by: NJames Bottomley <JBottomley@Odin.com>

drivers/scsi/be2iscsi/be_main.c

@@ -668,14 +668,20 @@ static int beiscsi_enable_pci(struct pci_dev *pcidev)
 		return ret;
 	}
 
+	ret = pci_request_regions(pcidev, DRV_NAME);
+	if (ret) {
+		dev_err(&pcidev->dev,
+				"beiscsi_enable_pci - request region failed\n");
+		goto pci_dev_disable;
+	}
+
 	pci_set_master(pcidev);
 	ret = pci_set_dma_mask(pcidev, DMA_BIT_MASK(64));
 	if (ret) {
 		ret = pci_set_dma_mask(pcidev, DMA_BIT_MASK(32));
 		if (ret) {
 			dev_err(&pcidev->dev, "Could not set PCI DMA Mask\n");
-			pci_disable_device(pcidev);
-			return ret;
+			goto pci_region_release;
 		} else {
 			ret = pci_set_consistent_dma_mask(pcidev,
 							  DMA_BIT_MASK(32));
@@ -684,11 +690,17 @@ static int beiscsi_enable_pci(struct pci_dev *pcidev)
 		ret = pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(64));
 		if (ret) {
 			dev_err(&pcidev->dev, "Could not set PCI DMA Mask\n");
-			pci_disable_device(pcidev);
-			return ret;
+			goto pci_region_release;
 		}
 	}
 	return 0;
+
+pci_region_release:
+	pci_release_regions(pcidev);
+pci_dev_disable:
+	pci_disable_device(pcidev);
+
+	return ret;
 }
 
 static int be_ctrl_init(struct beiscsi_hba *phba, struct pci_dev *pdev)
@@ -5275,6 +5287,7 @@ static void beiscsi_remove(struct pci_dev *pcidev)
 	iscsi_host_free(phba->shost);
 	pci_disable_pcie_error_reporting(pcidev);
 	pci_set_drvdata(pcidev, NULL);
+	pci_release_regions(pcidev);
 	pci_disable_device(pcidev);
 }
 
@@ -5755,6 +5768,7 @@ static int beiscsi_dev_probe(struct pci_dev *pcidev,
 	iscsi_host_free(phba->shost);
 	pci_set_drvdata(pcidev, NULL);
 disable_pci:
+	pci_release_regions(pcidev);
 	pci_disable_device(pcidev);
 	return ret;
 }