From b88a0b4e8812777d1e715ab095738197f7f8eb96 Mon Sep 17 00:00:00 2001
From: "W. Felix Handte" <w@felixhandte.com>
Date: Mon, 26 Mar 2018 11:43:52 -0400
Subject: [PATCH] Only Perform Dict Lookup if Attempts Remain

---
 lib/lz4hc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/lz4hc.c b/lib/lz4hc.c
index 0caf001..e005cd7 100644
--- a/lib/lz4hc.c
+++ b/lib/lz4hc.c
@@ -288,7 +288,7 @@ LZ4HC_InsertAndGetWiderMatch (
         }   }   }   }
     }  /* while ((matchIndex>=lowLimit) && (matchIndex < (ip - base)) && (nbAttempts)) */
 
-    if (dictCtx != NULL) {
+    if (dictCtx != NULL && nbAttempts) {
         ptrdiff_t dictIndexDelta = dictCtx->base - dictCtx->end + lowLimit;
         dictMatchIndex = dictCtx->hashTable[LZ4HC_hashPtr(ip)];
         matchIndex = dictMatchIndex + dictIndexDelta;
-- 
2.7.4