read_lock(&dev_base_lock);
if (dev_isalive(dev)) {
- if(dev->wireless_handlers &&
- dev->wireless_handlers->get_wireless_stats)
+ if (dev->wireless_handlers &&
+ dev->wireless_handlers->get_wireless_stats)
iw = dev->wireless_handlers->get_wireless_stats(dev);
if (iw != NULL)
ret = (*format)(iw, buf);
buf += n;
size -= n;
+ if ((size <= 0) || (i >= num_envp))
+ return -ENOMEM;
+
+ /* pass ifindex to uevent.
+ * ifindex is useful as it won't change (interface name may change)
+ * and is what RtNetlink uses natively. */
+ envp[i++] = buf;
+ n = snprintf(buf, size, "IFINDEX=%d", dev->ifindex) + 1;
+ buf += n;
+ size -= n;
+
if ((size <= 0) || (i >= num_envp))
return -ENOMEM;