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-rw-r--r--cache.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/cache.c b/cache.c
index b701e13..add647e 100644
--- a/cache.c
+++ b/cache.c
@@ -49,13 +49,13 @@ static int open_slot(struct cache_slot *slot)
return errno;
if (fstat(slot->cache_fd, &slot->cache_st))
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);
if (bufz)
bufkeylen = bufz - slot->buf;