1 files changed, 3 insertions, 0 deletions

diff --git a/lib/gcd.c b/lib/gcd.c
index cce4f3cd14b3..3657f129d7b8 100644
--- a/lib/gcd.c
+++ b/lib/gcd.c
@@ -9,6 +9,9 @@ unsigned long gcd(unsigned long a, unsigned long b)
 
         if (a < b)
                 swap(a, b);
+
+        if (!b)
+                return a;
         while ((r = a % b) != 0) {
                 a = b;
                 b = r;