Fix typo in access_override_creds(), modify non-RCY to non-RCU.

Signed-off-by: gaoyusong <a869920004@163.com>
---
 fs/open.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/open.c b/fs/open.c
index 98f6601fbac6..72eb20a8256a 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -442,7 +442,7 @@ static const struct cred *access_override_creds(void)
 	 * 'get_current_cred()' function), that will clear the
 	 * non_rcu field, because now that other user may be
 	 * expecting RCU freeing. But normal thread-synchronous
-	 * cred accesses will keep things non-RCY.
+	 * cred accesses will keep things non-RCU.
 	 */
 	override_cred->non_rcu = 1;
 
-- 
2.34.1