cx82310_eth: check usb_string() return value for error

Fix that usb_string() return value is not checked for error (negative value).
Also change the ignore message a bit and lower its level to info.

Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 5 deletions

diff --git a/drivers/net/usb/cx82310_eth.c b/drivers/net/usb/cx82310_eth.c
index 6fbe03276b27..4d451789ea7c 100644
--- a/drivers/net/usb/cx82310_eth.c
+++ b/drivers/net/usb/cx82310_eth.c
@@ -138,11 +138,9 @@ static int cx82310_bind(struct usbnet *dev, struct usb_interface *intf)
         struct usb_device *udev = dev->udev;
 
         /* avoid ADSL modems - continue only if iProduct is "USB NET CARD" */
-        if (udev->descriptor.iProduct &&
-            usb_string(udev, udev->descriptor.iProduct, buf, sizeof(buf)) &&
-            strcmp(buf, "USB NET CARD")) {
-                dev_err(&udev->dev,
-                        "probably an ADSL modem, use cxacru driver instead\n");
+        if (usb_string(udev, udev->descriptor.iProduct, buf, sizeof(buf)) > 0
+            && strcmp(buf, "USB NET CARD")) {
+                dev_info(&udev->dev, "ignoring: probably an ADSL modem\n");
                 return -ENODEV;
         }