Prevent nil pointer panic in Alicloud infra controller

```improvement user An issue in the Alicloud infrastructure controller that might cause nil pointer panics has been fixed. ```
gardener-attic · May 31, 2019 · 4f11f22 · 4f11f22
1 parent 20af1d2
commit 4f11f22
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/controllers/provider-alicloud/pkg/controller/infrastructure/client.go b/controllers/provider-alicloud/pkg/controller/infrastructure/client.go
@@ -75,12 +75,13 @@ func FetchEIPInternetChargeType(vpcClient alicloudclient.VPC, vpcID string) (str
 	if err != nil {
 		return "", err
 	}
-	natGateway := describeNatGatewaysRes.NatGateways.NatGateway[0]
 
 	if len(describeNatGatewaysRes.NatGateways.NatGateway) != 1 {
 		return alicloudclient.DefaultInternetChargeType, nil
 	}
 
+	natGateway := describeNatGatewaysRes.NatGateways.NatGateway[0]
+
 	if len(natGateway.IpLists.IpList) == 0 {
 		return alicloudclient.DefaultInternetChargeType, nil
 	}