diff --git a/pkg/cloud/devicemanager/manager.go b/pkg/cloud/devicemanager/manager.go
index 8214335e..b88c442d 100644
--- a/pkg/cloud/devicemanager/manager.go
+++ b/pkg/cloud/devicemanager/manager.go
@@ -220,7 +220,7 @@ func (d *deviceManager) getDeviceNamesInUse(instance osc.Vm) map[string]string {
 		name = strings.TrimPrefix(name, "/dev/xvd")
 
 		if len(name) < 1 || len(name) > 2 {
-			klog.Warningf("Unexpected BSU DeviceName: %q", blockDevice.DeviceName)
+			klog.Warningf("Unexpected BSU DeviceName: %q", *blockDevice.DeviceName)
 		}
 		inUse[name] = blockDevice.Bsu.GetVolumeId()
 	}
diff --git a/pkg/driver/luks_util.go b/pkg/driver/luks_util.go
index 2919da65..188790c6 100644
--- a/pkg/driver/luks_util.go
+++ b/pkg/driver/luks_util.go
@@ -104,7 +104,7 @@ func LuksClose(mounter Mounter, encryptedDeviceName string) error {
 	}
 
 	if err = mounter.Command("cryptsetup", "-v", "luksClose", encryptedDeviceName).Run(); err != nil {
-		klog.V(4).Info("error while closing luks device %v", encryptedDeviceName)
+		klog.V(4).Info("error while closing luks device", encryptedDeviceName)
 		return err
 	}