From 0afdfdf649005b50c1fffd663537b405129ae4d1 Mon Sep 17 00:00:00 2001
From: Denis Vlasenko <vda.linux@googlemail.com>
Date: Fri, 28 Sep 2007 13:41:41 +0000
Subject: hdparm: paranoia-induced fix against theoretical div-by-0 case
---
miscutils/hdparm.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/miscutils/hdparm.c b/miscutils/hdparm.c
index 906dd7a0c..cb6db78cd 100644
--- a/miscutils/hdparm.c
+++ b/miscutils/hdparm.c
@@ -1378,8 +1378,8 @@ static void print_timing(unsigned m, unsigned elapsed_us)
printf("%5u MB in %u.%02u seconds = %u kB/s\n",
m, sec, hs,
- /* + 1 prevents div-by-0 */
- (unsigned) ((unsigned long long)m * (1024 * 1000000) / (elapsed_us + 1))
+ /* "| 1" prevents div-by-0 */
+ (unsigned) ((unsigned long long)m * (1024 * 1000000) / (elapsed_us | 1))
// ~= (m * 1024) / (elapsed_us / 1000000)
// = kb / elapsed_sec
);
--
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