[PATCH] userfaultfd/selftests: Fix typo in comment

[Xiang wangx]

Delete the redundant word 'in'.

Signed-off-by: Xiang wangx <wangxiang@xxxxxxxxxx>
---
 tools/testing/selftests/vm/userfaultfd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/vm/userfaultfd.c b/tools/testing/selftests/vm/userfaultfd.c
index 0bdfc1955229..4bc24581760d 100644
--- a/tools/testing/selftests/vm/userfaultfd.c
+++ b/tools/testing/selftests/vm/userfaultfd.c
@@ -860,7 +860,7 @@ static int stress(struct uffd_stats *uffd_stats)
 	/*
 	 * Be strict and immediately zap area_src, the whole area has
 	 * been transferred already by the background treads. The
-	 * area_src could then be faulted in in a racy way by still
+	 * area_src could then be faulted in a racy way by still
 	 * running uffdio_threads reading zeropages after we zapped
 	 * area_src (but they're guaranteed to get -EEXIST from
 	 * UFFDIO_COPY without writing zero pages into area_dst
-- 
2.36.1