net: lan78xx: Bail out if lan78xx_get_endpoints fails

[ Upstream commit fa8cd98c06407b5798b927cd7fd14d30f360ed02 ]

We need to bail out if lan78xx_get_endpoints() fails, otherwise the
result is overwritten.

Fixes: 55d7de9de6c3 ("Microchip's LAN7800 family USB 2/3 to 10/100/1000 Ethernet")
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Reviewed-by: Raghuram Chary Jallipalli <raghuramchary.jallipalli@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c
index 45a6a7c..fc922f8 100644 (file)
--- a/drivers/net/usb/lan78xx.c
+++ b/drivers/net/usb/lan78xx.c
@@ -2246,6 +2246,11 @@ static int lan78xx_bind(struct lan78xx_net *dev, struct usb_interface *intf)
        int i;
 
        ret = lan78xx_get_endpoints(dev, intf);
+       if (ret) {
+               netdev_warn(dev->net, "lan78xx_get_endpoints failed: %d\n",
+                           ret);
+               return ret;
+       }
 
        dev->data[0] = (unsigned long)kzalloc(sizeof(*pdata), GFP_KERNEL);