From: W. Felix Handte <w@felixhandte.com>
Date: Thu, 19 Apr 2018 23:36:34 +0000 (-0400)
Subject: Fix Signedness of Comparison
X-Git-Tag: upstream/1.9.3~8^2~25^2^2~18
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=14c577d4c9332197dc0003833e043608b4b4b239;p=platform%2Fupstream%2Flz4.git

Fix Signedness of Comparison
---

diff --git a/lib/lz4hc.c b/lib/lz4hc.c
index 9a02787..20df8fa 100644
--- a/lib/lz4hc.c
+++ b/lib/lz4hc.c
@@ -308,7 +308,7 @@ LZ4HC_InsertAndGetWiderMatch (
         ptrdiff_t dictIndexDelta = dictCtx->base - dictCtx->end + lowLimit;
         dictMatchIndex = dictCtx->hashTable[LZ4HC_hashPtr(ip)];
         matchIndex = dictMatchIndex + (int)dictIndexDelta;
-        while (dictMatchIndex + MAX_DISTANCE > ip - base - dictIndexDelta && nbAttempts--) {
+        while ((ptrdiff_t) dictMatchIndex + MAX_DISTANCE > ip - base - dictIndexDelta && nbAttempts--) {
             const BYTE* const matchPtr = dictCtx->base + dictMatchIndex;
 
             if (LZ4_read32(matchPtr) == pattern) {