usbnet: ipheth: do not stop RX on failing RX callback

[ Upstream commit 74efed51e0a4d62f998f806c307778b47fc73395 ]

RX callbacks can fail for multiple reasons:

* Payload too short
* Payload formatted incorrecly (e.g. bad NCM framing)
* Lack of memory

None of these should cause the driver to seize up.

Make such failures non-critical and continue processing further
incoming URBs.

Signed-off-by: Foster Snowhill <forst@pen.gy>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/net/usb/ipheth.c b/drivers/net/usb/ipheth.c
index f04c7bf796654f377f526c9fd0955df8dd67e091..cdc72559790a68c162c3f8a03f0248ed39c002dd 100644 (file)
--- a/drivers/net/usb/ipheth.c
+++ b/drivers/net/usb/ipheth.c
@@ -308,7 +308,6 @@ static void ipheth_rcvbulk_callback(struct urb *urb)
        if (retval != 0) {
                dev_err(&dev->intf->dev, "%s: callback retval: %d\n",
                        __func__, retval);
-               return;
        }
 
 rx_submit: