[PATCH] phy: sr-usb: fix build warning

[Srinath Mannam]

Add invalid version check to fix below warning reported for stingray
usb phy driver.

The kbuild robot reports:

drivers/phy/broadcom/phy-bcm-sr-usb.c: In function 'bcm_usb_phy_probe':
warning: 'phy_cfg' may be used uninitialized in this function

Fixes: a3b96057577 (phy: sr-usb: Add Stingray USB PHY driver)
Reported-by: kbuild test robot <lkp@xxxxxxxxx>
Signed-off-by: Srinath Mannam <srinath.mannam@xxxxxxxxxxxx>
---
 drivers/phy/broadcom/phy-bcm-sr-usb.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/phy/broadcom/phy-bcm-sr-usb.c b/drivers/phy/broadcom/phy-bcm-sr-usb.c
index bfe8237..fe6c589 100644
--- a/drivers/phy/broadcom/phy-bcm-sr-usb.c
+++ b/drivers/phy/broadcom/phy-bcm-sr-usb.c
@@ -328,7 +328,8 @@ static int bcm_usb_phy_create(struct device *dev, struct device_node *node,
 			return PTR_ERR(phy_cfg->phy);
 
 		phy_set_drvdata(phy_cfg->phy, phy_cfg);
-	}
+	} else
+		return -ENODEV;
 
 	dev_set_drvdata(dev, phy_cfg);
 
-- 
2.7.4