smsc95xx: check return value of smsc95xx_reset

The return value of the function smsc95xx_reset() must be checked
to avoid returning false success from the function smsc95xx_bind().

Fixes: 2f7ca802bdae2 ("net: Add SMSC LAN9500 USB2.0 10/100 ethernet adapter driver")
Signed-off-by: Andre Edich <andre.edich@microchip.com>
Signed-off-by: Parthiban Veerasooran <Parthiban.Veerasooran@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c
index 3cf4dc3433f91e6566a26b7cf811b7861cbd7d6a..eb404bb74e18e1cc2d10bc2d5bd7fa627021922a 100644 (file)
--- a/drivers/net/usb/smsc95xx.c
+++ b/drivers/net/usb/smsc95xx.c
@@ -1287,6 +1287,8 @@ static int smsc95xx_bind(struct usbnet *dev, struct usb_interface *intf)
 
        /* Init all registers */
        ret = smsc95xx_reset(dev);
+       if (ret)
+               goto free_pdata;
 
        /* detect device revision as different features may be available */
        ret = smsc95xx_read_reg(dev, ID_REV, &val);
@@ -1317,6 +1319,10 @@ static int smsc95xx_bind(struct usbnet *dev, struct usb_interface *intf)
        schedule_delayed_work(&pdata->carrier_check, CARRIER_CHECK_DELAY);
 
        return 0;
+
+free_pdata:
+       kfree(pdata);
+       return ret;
 }
 
 static void smsc95xx_unbind(struct usbnet *dev, struct usb_interface *intf)