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-rw-r--r--cache.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/cache.c b/cache.c
index df1b4a3..6736a01 100644
--- a/cache.c
+++ b/cache.c
@@ -61,8 +61,9 @@ static int open_slot(struct cache_slot *slot)
 	if (bufz)
 		bufkeylen = bufz - slot->buf;
 
-	slot->match = bufkeylen == slot->keylen &&
-	    !memcmp(slot->key, slot->buf, bufkeylen + 1);
+	if (slot->key)
+		slot->match = bufkeylen == slot->keylen &&
+		    !memcmp(slot->key, slot->buf, bufkeylen + 1);
 
 	return 0;
 }