Use standard Linux error codes.
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
        if (!net_dev->extension) {
                dev_err(&dev->device, "got rndis message but no rndis device - "
                          "dropping this message!\n");
-               return -1;
+               return -ENODEV;
        }
 
        rndis_dev = (struct rndis_device *)net_dev->extension;
        if (rndis_dev->state == RNDIS_DEV_UNINITIALIZED) {
                dev_err(&dev->device, "got rndis message but rndis device "
                           "uninitialized...dropping this message!\n");
-               return -1;
+               return -ENODEV;
        }
 
        rndis_hdr = (struct rndis_message *)kmap_atomic(