net: dsa: gswip: Fix copy-paste error in gswip_gphy_fw_probe()

The return value from of_reset_control_array_get_exclusive() is not
checked correctly. The test is done against a wrong variable. This
patch fix it.

Fixes: 14fceff4771e ("net: dsa: Add Lantiq / Intel DSA driver for vrx200")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Acked-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/dsa/lantiq_gswip.c

@@ -934,10 +934,10 @@ static int gswip_gphy_fw_probe(struct gswip_priv *priv,
 	}
 
 	gphy_fw->reset = of_reset_control_array_get_exclusive(gphy_fw_np);
-	if (IS_ERR(priv->gphy_fw)) {
-		if (PTR_ERR(priv->gphy_fw) != -EPROBE_DEFER)
+	if (IS_ERR(gphy_fw->reset)) {
+		if (PTR_ERR(gphy_fw->reset) != -EPROBE_DEFER)
 			dev_err(dev, "Failed to lookup gphy reset\n");
-		return PTR_ERR(priv->gphy_fw);
+		return PTR_ERR(gphy_fw->reset);
 	}
 
 	return gswip_gphy_fw_load(priv, gphy_fw);