[PATCH 2/2] bisect: avoid signed integer overflow

From: John Keeping <john@keeping.me.uk>
Date: Apr 2, 2013, 19:50 UTC
Message-ID: <0cb4456948b0874a1cedc5679a7b23b82e755e94.1364931627.git.john@keeping.me.uk>
In-Reply-To: <cover.1364931627.git.john@keeping.me.uk>

Signed-off-by: John Keeping <john@keeping.me.uk>
---
 bisect.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/bisect.c b/bisect.c
index bd1b7b5..0d33c6f 100644
--- a/bisect.c
+++ b/bisect.c
@@ -526,7 +526,7 @@ struct commit_list *filter_skipped(struct commit_list *list,
  * for this application.
  */
 static int get_prn(int count) {
-	count = count * 1103515245 + 12345;
+	count = ((unsigned) count) * 1103515245 + 12345;
 	return ((unsigned)(count/65536) % PRN_MODULO);
 }

-- 
1.8.2.540.gf023cfe