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bitmap: Bail out on invalid input to FontFileMakeDir instead of calling calloc for 0 bytes

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Found by clang static analysis:
    Call to 'calloc' has an allocation size of 0 bytes

Signed-off-by: Jeremy Huddleston Sequoia <jeremyhu@apple.com>
This commit is contained in:
Jeremy Huddleston Sequoia
2016-05-29 23:34:35 -07:00
parent d0fff11199
commit ac559fad20
1 changed files with 4 additions and 0 deletions
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4
src/bitmap/bitscale.c
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@@ -1477,6 +1477,10 @@ BitmapScaleBitmaps(FontPtr pf, /* scaled font */
lastRow = pfi->lastRow;
nchars = (lastRow - firstRow + 1) * (lastCol - firstCol + 1);
if (nchars <= 0) {
goto bail;
}
glyph = pf->glyph;
for (i = 0; i < nchars; i++)
{