From 0afdfdf649005b50c1fffd663537b405129ae4d1 Mon Sep 17 00:00:00 2001 From: Denis Vlasenko Date: Fri, 28 Sep 2007 13:41:41 +0000 Subject: [PATCH] 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 ); -- 2.25.1