From: Wang Hai wanghai38@huawei.com
commit 6f7c88691191e6c52ef2543d6f1da8d360b27a24 upstream.
Return error code if usb_maxpacket() returns 0 in usbnet_probe()
Fixes: 397430b50a36 ("usbnet: sanity check for maxpacket") Reported-by: Hulk Robot hulkci@huawei.com Signed-off-by: Wang Hai wanghai38@huawei.com Reviewed-by: Johan Hovold johan@kernel.org Link: https://lore.kernel.org/r/20211026124015.3025136-1-wanghai38@huawei.com Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/usb/usbnet.c | 1 + 1 file changed, 1 insertion(+)
--- a/drivers/net/usb/usbnet.c +++ b/drivers/net/usb/usbnet.c @@ -1786,6 +1786,7 @@ usbnet_probe (struct usb_interface *udev dev->maxpacket = usb_maxpacket (dev->udev, dev->out, 1); if (dev->maxpacket == 0) { /* that is a broken device */ + status = -ENODEV; goto out4; }