hpsa: do not ignore failure of sense controller parameters command

Signed-off-by: NJoe Handzik <joseph.t.handzik@hp.com>
Signed-off-by: NStephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: NChristoph Hellwig <hch@lst.de>

drivers/scsi/hpsa.c

@@ -2983,12 +2983,12 @@ static int hpsa_hba_mode_enabled(struct ctlr_info *h)
 		GFP_KERNEL);
 
 	if (!ctlr_params)
-		return 0;
+		return -ENOMEM;
 	rc = hpsa_bmic_ctrl_mode_sense(h, RAID_CTLR_LUNID, 0, ctlr_params,
 		sizeof(struct bmic_controller_parameters));
-	if (rc != 0) {
+	if (rc) {
 		kfree(ctlr_params);
-		return 0;
+		return rc;
 	}
 
 	hba_mode_enabled =
@@ -3035,6 +3035,8 @@ static void hpsa_update_scsi_devices(struct ctlr_info *h, int hostno)
 	memset(lunzerobits, 0, sizeof(lunzerobits));
 
 	rescan_hba_mode = hpsa_hba_mode_enabled(h);
+	if (rescan_hba_mode < 0)
+		goto out;
 
 	if (!h->hba_mode_enabled && rescan_hba_mode)
 		dev_warn(&h->pdev->dev, "HBA mode enabled\n");