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lib/lcm.c: lcm(n,0)=lcm(0,n) is 0, not n

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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>
This commit is contained in:
Rasmus Villemoes 2014-12-10 15:51:29 -08:00 committed by Linus Torvalds
parent 74a5fef7cb
commit 69c953c85c
1 changed files with 2 additions and 4 deletions
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6
lib/lcm.c
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@ -8,9 +8,7 @@ unsigned long lcm(unsigned long a, unsigned long b)
{ {
if (a && b) if (a && b)
return (a / gcd(a, b)) * b; return (a / gcd(a, b)) * b;
else if (b) else
return b; return 0;
return a;
} }
EXPORT_SYMBOL_GPL(lcm); EXPORT_SYMBOL_GPL(lcm);