From: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Date: Wed, 10 Dec 2014 23:51:29 +0000 (-0800)
Subject: lib/lcm.c: lcm(n,0)=lcm(0,n) is 0, not n
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=69c953c85c6cca85565ab32e4264b2efb6272e0e;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

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>
---

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);