phy: bcm-ns-usb2: checking the wrong variable

We intended to test "usb2->phy" here instead of "dev".

Fixes: d3feb4067335 ('phy: bcm-ns-usb2: new driver for USB 2.0 PHY on Northstar')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
diff --git a/drivers/phy/phy-bcm-ns-usb2.c b/drivers/phy/phy-bcm-ns-usb2.c
index 95ab6b2..58dff80 100644
--- a/drivers/phy/phy-bcm-ns-usb2.c
+++ b/drivers/phy/phy-bcm-ns-usb2.c
@@ -109,8 +109,8 @@
 	}
 
 	usb2->phy = devm_phy_create(dev, NULL, &ops);
-	if (IS_ERR(dev))
-		return PTR_ERR(dev);
+	if (IS_ERR(usb2->phy))
+		return PTR_ERR(usb2->phy);
 
 	phy_set_drvdata(usb2->phy, usb2);
 	platform_set_drvdata(pdev, usb2);