diff --git a/src/linux/net/newip/nip_hooks_register.c b/src/linux/net/newip/nip_hooks_register.c
index deea361fd8f6984ffc8d499bdf642045ce034a8a..a88ab8fde011d108f7341de1f2b9d85d8d7890d2 100644
--- a/src/linux/net/newip/nip_hooks_register.c
+++ b/src/linux/net/newip/nip_hooks_register.c
@@ -20,7 +20,14 @@ void ninet_ehashfn_hook(void *data, const struct sock *sk, u32 *ret)
 void ninet_gifconf_hook(void *data, struct net_device *dev,
 			char __user *buf, int len, int size, int *ret)
 {
-	*ret = ninet_gifconf(dev, buf, len, size);
+	if (*ret >= 0) {
+		int done = ninet_gifconf(dev, buf + *ret, len - *ret, size);
+
+		if (done < 0)
+			*ret = done;
+		else
+			*ret += done;
+	}
 }
 
 int ninet_hooks_register(void)