[PATCH] cgroup: Fix typo in comment

[haifeng.xu]

Replace iff with if.

Signed-off-by: haifeng.xu <haifeng.xu@xxxxxxxxxx>
---
 kernel/cgroup/cgroup.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c
index f2743a476190..93c5e50b1392 100644
--- a/kernel/cgroup/cgroup.c
+++ b/kernel/cgroup/cgroup.c
@@ -814,7 +814,7 @@ static bool css_set_populated(struct css_set *cset)
  * One of the css_sets associated with @cgrp is either getting its first
  * task or losing the last.  Update @cgrp->nr_populated_* accordingly.  The
  * count is propagated towards root so that a given cgroup's
- * nr_populated_children is zero iff none of its descendants contain any
+ * nr_populated_children is zero if none of its descendants contain any
  * tasks.
  *
  * @cgrp's interface file "cgroup.populated" is zero if both
-- 
2.25.1