diff options
| author | Rasmus Villemoes <linux@rasmusvillemoes.dk> | 2014-12-11 00:51:29 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-12-11 02:41:11 +0100 |
| commit | 69c953c85c6cca85565ab32e4264b2efb6272e0e (patch) | |
| tree | 9a28849166ee59d755eb288652c036e469410b08 /lib | |
| parent | lib/lcm.c: ensure correct result whenever it fits (diff) | |
| download | linux-69c953c85c6cca85565ab32e4264b2efb6272e0e.tar.xz linux-69c953c85c6cca85565ab32e4264b2efb6272e0e.zip | |
lib/lcm.c: lcm(n,0)=lcm(0,n) is 0, not n
Return the mathematically correct answer when an argument is 0.
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/lcm.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/lib/lcm.c b/lib/lcm.c index 01b3aa922dda..51cc6b13cd52 100644 --- a/lib/lcm.c +++ b/lib/lcm.c @@ -8,9 +8,7 @@ unsigned long lcm(unsigned long a, unsigned long b) { if (a && b) return (a / gcd(a, b)) * b; - else if (b) - return b; - - return a; + else + return 0; } EXPORT_SYMBOL_GPL(lcm); |