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>
17 years ago · 6102bcfce4
parent c3de425acb
commit 6102bcfce4
1 changed files with 1 additions and 1 deletions
--- 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);