i40e: clear __I40E_VIRTCHNL_OP_PENDING on invalid min Tx rate

In the case of an invalid min Tx rate being requested
i40e_ndo_set_vf_bw() immediately returns -EINVAL instead of releasing
__I40E_VIRTCHNL_OP_PENDING first.
Signed-off-by: Stefan Assmann <sassmann@kpanic.de>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c

@@ -4263,7 +4263,8 @@ int i40e_ndo_set_vf_bw(struct net_device *netdev, int vf_id, int min_tx_rate,
 	if (min_tx_rate) {
 		dev_err(&pf->pdev->dev, "Invalid min tx rate (%d) (greater than 0) specified for VF %d.\n",
 			min_tx_rate, vf_id);
-		return -EINVAL;
+		ret = -EINVAL;
+		goto error;
 	}
 
 	vf = &pf->vf[vf_id];