phy: ralink: phy-mt7621-pci: fix return value check in mt7621_pci_phy_probe()

Fix the return value check which testing the wrong variable
in mt7621_pci_phy_probe().

Fixes: d87da32372a0 ("phy: ralink: Add PHY driver for MT7621 PCIe PHY")
Reported-by: Hulk Robot <[e-mail]>
Signed-off-by: Wei Yongjun <[e-mail]>
Reviewed-by: Sergio Paracuellos <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Vinod Koul <[e-mail]>

drivers/phy/ralink/phy-mt7621-pci.c

···
 		return PTR_ERR(phy->regmap);
 
 	phy->phy = devm_phy_create(dev, dev->of_node, &mt7621_pci_phy_ops);
-	if (IS_ERR(phy)) {
+	if (IS_ERR(phy->phy)) {
 		dev_err(dev, "failed to create phy\n");
-		return PTR_ERR(phy);
+		return PTR_ERR(phy->phy);
 	}
 
 	phy_set_drvdata(phy->phy, phy);