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authorAl Viro <viro@zeniv.linux.org.uk>2015-04-11 22:27:19 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2015-04-11 22:27:19 -0400
commit39c853ebfe169f187a760b34f9cbf54751bfce00 (patch)
tree2a5a741d0cff7d4f90998b31b32ff80cfccd0369 /lib/lcm.c
parentfdc81f45e9f57858da6351836507fbcf1b7583ee (diff)
parent01e97e6517053d7c0b9af5248e944a9209909cf5 (diff)
downloadlinux-39c853ebfe169f187a760b34f9cbf54751bfce00.tar.gz
Merge branch 'for-davem' into for-next
Diffstat (limited to 'lib/lcm.c')
-rw-r--r--lib/lcm.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/lib/lcm.c b/lib/lcm.c
index e97dbd51e756..03d7fcb420b5 100644
--- a/lib/lcm.c
+++ b/lib/lcm.c
@@ -12,3 +12,14 @@ unsigned long lcm(unsigned long a, unsigned long b)
 		return 0;
 }
 EXPORT_SYMBOL_GPL(lcm);
+
+unsigned long lcm_not_zero(unsigned long a, unsigned long b)
+{
+	unsigned long l = lcm(a, b);
+
+	if (l)
+		return l;
+
+	return (b ? : a);
+}
+EXPORT_SYMBOL_GPL(lcm_not_zero);