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hdparm: paranoia-induced fix against theoretical div-by-0 case

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This commit is contained in:
Denis Vlasenko 2007-09-28 13:41:41 +00:00
parent 920c52a5c8
commit 0afdfdf649
1 changed files with 2 additions and 2 deletions
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4
miscutils/hdparm.c
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@ -1378,8 +1378,8 @@ static void print_timing(unsigned m, unsigned elapsed_us)
printf("%5u MB in %u.%02u seconds = %u kB/s\n", printf("%5u MB in %u.%02u seconds = %u kB/s\n",
m, sec, hs, m, sec, hs,
/* + 1 prevents div-by-0 */ /* "| 1" prevents div-by-0 */
(unsigned) ((unsigned long long)m * (1024 * 1000000) / (elapsed_us + 1)) (unsigned) ((unsigned long long)m * (1024 * 1000000) / (elapsed_us | 1))
// ~= (m * 1024) / (elapsed_us / 1000000) // ~= (m * 1024) / (elapsed_us / 1000000)
// = kb / elapsed_sec // = kb / elapsed_sec
); );