[SCSI] ufs: fix potential NULL pointer dereferencing error in ufshcd_prove.

Avoid dereferencing a NULL pointer if scsi_host_alloc is failed.
Signed-off-by: NNamjae Jeon <linkinjeon@gmail.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

drivers/scsi/ufs/ufshcd.c

@@ -1836,7 +1836,7 @@ ufshcd_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	err = pci_request_regions(pdev, UFSHCD);
 	if (err < 0) {
 		dev_err(&pdev->dev, "request regions failed\n");
-		goto out_disable;
+		goto out_host_put;
 	}
 
 	hba->mmio_base = pci_ioremap_bar(pdev, 0);
@@ -1925,8 +1925,9 @@ ufshcd_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	iounmap(hba->mmio_base);
 out_release_regions:
 	pci_release_regions(pdev);
-out_disable:
+out_host_put:
 	scsi_host_put(host);
+out_disable:
 	pci_clear_master(pdev);
 	pci_disable_device(pdev);
 out_error: