3.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Davidlohr Bueso <d...@gnu.org>
commit e96875677fb2b7cb739c5d7769824dff7260d31d upstream.
Account for all properties when a and/or b are 0:
gcd(0, 0) = 0
gcd(a, 0) = a
gcd(0, b) = b
Fixes no known problems in current kernels.
Signed-off-by: Davidlohr Bueso <d...@gnu.org>
Cc: Eric Dumazet <eric.duma...@gmail.com>
Signed-off-by: Andrew Morton <a...@linux-foundation.org>
Signed-off-by: Linus Torvalds <torva...@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
lib/gcd.c | 3 +++
1 file changed, 3 insertions(+)
--- a/lib/gcd.c
+++ b/lib/gcd.c
@@ -9,6 +9,9 @@ unsigned long gcd(unsigned long a, unsig
if (a < b)
swap(a, b);
+
+ if (!b)
+ return a;
while ((r = a % b) != 0) {
a = b;
b = r;
--
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