phy: ingenic: Fix a typo in ingenic_usb_phy_probe()

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

Fixes: 31de313dfdcf ("PHY: Ingenic: Add USB PHY driver using generic PHY framework.")
Reported-by: Hulk Robot <[e-mail]>
Signed-off-by: Wei Yongjun <[e-mail]>
Acked-by: Paul Cercueil <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Vinod Koul <[e-mail]>

drivers/phy/ingenic/phy-ingenic-usb.c

···
 	}
 
 	priv->phy = devm_phy_create(dev, NULL, &ingenic_usb_phy_ops);
-	if (IS_ERR(priv))
-		return PTR_ERR(priv);
+	if (IS_ERR(priv->phy))
+		return PTR_ERR(priv->phy);
 
 	phy_set_drvdata(priv->phy, priv);