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authorRasmus Villemoes <linux@rasmusvillemoes.dk>2014-12-10 15:51:29 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2014-12-10 17:41:11 -0800
commit69c953c85c6cca85565ab32e4264b2efb6272e0e (patch)
tree9a28849166ee59d755eb288652c036e469410b08 /lib
parent74a5fef7cb0839c6b595f90c7914a62ac9d0bcf9 (diff)
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.c6
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);

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