net: cisco: enic: simplify the return vnic_cq_alloc()

Simplify the return expression.
Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/cisco/enic/vnic_cq.c

@@ -36,8 +36,6 @@ void vnic_cq_free(struct vnic_cq *cq)
 int vnic_cq_alloc(struct vnic_dev *vdev, struct vnic_cq *cq, unsigned int index,
 	unsigned int desc_count, unsigned int desc_size)
 {
-	int err;
-
 	cq->index = index;
 	cq->vdev = vdev;
 
@@ -47,11 +45,7 @@ int vnic_cq_alloc(struct vnic_dev *vdev, struct vnic_cq *cq, unsigned int index,
 		return -EINVAL;
 	}
 
-	err = vnic_dev_alloc_desc_ring(vdev, &cq->ring, desc_count, desc_size);
-	if (err)
-		return err;
-
-	return 0;
+	return vnic_dev_alloc_desc_ring(vdev, &cq->ring, desc_count, desc_size);
 }
 
 void vnic_cq_init(struct vnic_cq *cq, unsigned int flow_control_enable,