From 6102bcfce46fd357566941d565b95f78510af79b Mon Sep 17 00:00:00 2001
From: Lars Hjemli
Date: Sun, 18 May 2008 23:10:05 +0200
Subject: cache.c: read(2) returns -1 on error, not 0

Noticed-by: Jim Meyering <jim@meyering.net>
Signed-off-by: Lars Hjemli <hjemli@gmail.com>
---
 cache.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cache.c b/cache.c
index b701e13..add647e 100644
--- a/cache.c
+++ b/cache.c
@@ -52,7 +52,7 @@ static int open_slot(struct cache_slot *slot)
 		return errno;
 
 	slot->bufsize = read(slot->cache_fd, slot->buf, sizeof(slot->buf));
-	if (slot->bufsize == 0)
+	if (slot->bufsize < 0)
 		return errno;
 
 	bufz = memchr(slot->buf, 0, slot->bufsize);
-- 
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