# HG changeset patch
# User prr
# Date 1527869796 25200
# Node ID 071f1fe0df5f6bc4fc6c50e2fb46997d2f30fdda
# Parent  8fbbd19bf3a152e302784684ad2a9ce88f137601
8200052: libjavajpeg: Fix compile warning in jchuff.c
Reviewed-by: prr
Contributed-by: adam.farley@uk.ibm.com, thomas.stuefe@sap.com

diff -r 8fbbd19bf3a1 -r 071f1fe0df5f src/java.desktop/share/native/libjavajpeg/jchuff.c
--- a/src/java.desktop/share/native/libjavajpeg/jchuff.c	Wed May 30 15:01:36 2018 +0200
+++ b/src/java.desktop/share/native/libjavajpeg/jchuff.c	Fri Jun 01 09:16:36 2018 -0700
@@ -805,8 +805,11 @@
   for (i = MAX_CLEN; i > 16; i--) {
     while (bits[i] > 0) {
       j = i - 2;                /* find length of new prefix to be used */
-      while (bits[j] == 0)
+      while (bits[j] == 0) {
+        if (j == 0)
+          ERREXIT(cinfo, JERR_HUFF_CLEN_OVERFLOW);
         j--;
+      }
 
       bits[i] -= 2;             /* remove two symbols */
       bits[i-1]++;              /* one goes in this length */