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8200052: libjavajpeg: Fix compile warning in jchuff.c

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Co-authored-by: Thomas Stuefe <thomas.stuefe@sap.com>
Reviewed-by: prr
This commit is contained in:
Adam Farley 2018-06-01 09:16:36 -07:00 committed by Phil Race
parent 60eb10cace
commit 1a3da59297
1 changed files with 4 additions and 1 deletions
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5
src/java.desktop/share/native/libjavajpeg/jchuff.c
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@ -805,8 +805,11 @@ jpeg_gen_optimal_table (j_compress_ptr cinfo, JHUFF_TBL * htbl, long freq[])
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 */