From efb2fe5f5dc65d0d32444d9ad10e35dc2d6bc3a4 Mon Sep 17 00:00:00 2001
From: Sami Kerola
Date: Fri, 21 Nov 2014 23:11:31 +0000
Subject: lib/mbalign: fix unsigned integer overflow [AddressSanitizer]

This error was reported 155 times.

lib/mbsalign.c:322:18: runtime error: unsigned integer overflow: 0 - 1
cannot be represented in type 'size_t' (aka 'unsigned long')

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
---
 lib/mbsalign.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'lib/mbsalign.c')

diff --git a/lib/mbsalign.c b/lib/mbsalign.c
index b307d19f7..052fec611 100644
--- a/lib/mbsalign.c
+++ b/lib/mbsalign.c
@@ -319,7 +319,7 @@ mbs_align_pad (char *dest, const char* dest_end, size_t n_spaces)
 {
   /* FIXME: Should we pad with "figure space" (\u2007)
      if non ascii data present?  */
-  while (n_spaces-- && (dest < dest_end))
+  for (/* nothing */; n_spaces && (dest < dest_end); n_spaces--)
     *dest++ = ' ';
   *dest = '\0';
   return dest;
-- 
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