From f503e9c2df2799fd9ce108535581448eac6890e8 Mon Sep 17 00:00:00 2001
From: chrox <chrox.huang@gmail.com>
Date: Sun, 25 Nov 2012 16:16:43 +0800
Subject: [PATCH] bugfix: waitForInput should return error when select returns
 zero

---
 input.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/input.c b/input.c
index 245abd483..7d645abbb 100644
--- a/input.c
+++ b/input.c
@@ -274,7 +274,7 @@ static int waitForInput(lua_State *L) {
 	 * timeout at all.
 	 */
 	num = select(nfds, &fds, NULL, NULL, (usecs < 0) ? NULL : &timeout);
-	if(num < 0) {
+	if(num <= 0) {
 		return luaL_error(L, "Waiting for input failed: %d\n", errno);
 	}