[NET]: Fix comparisons of unsigned < 0.

Recent gcc versions emit warnings when unsigned variables are
compared < 0 or >= 0.

Signed-off-by: Bill Nottingham <notting@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/wanrouter/wanmain.c b/net/wanrouter/wanmain.c
index 7a19e0e..849cc06 100644
--- a/net/wanrouter/wanmain.c
+++ b/net/wanrouter/wanmain.c
@@ -454,7 +454,7 @@
 	}
 
 	if (conf->data_size && conf->data) {
-		if (conf->data_size > 128000 || conf->data_size < 0) {
+		if (conf->data_size > 128000) {
 			printk(KERN_INFO
 			    "%s: ERROR, Invalid firmware data size %i !\n",
 					wandev->name, conf->data_size);