[PATCH -next] cred: add missing return error code when set_cred_ucounts() failed

[Yang Yingliang]

If set_cred_ucounts() failed, we need return the error code.

Fixes: 905ae01c4ae2 ("Add a reference to ucounts for each cred")
Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Signed-off-by: Yang Yingliang <yangyingliang@xxxxxxxxxx>
---
 kernel/cred.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/kernel/cred.c b/kernel/cred.c
index db7c46bf36e5..e6fd2b3fc31f 100644
--- a/kernel/cred.c
+++ b/kernel/cred.c
@@ -372,7 +372,8 @@ int copy_creds(struct task_struct *p, unsigned long clone_flags)
 		ret = create_user_ns(new);
 		if (ret < 0)
 			goto error_put;
-		if (set_cred_ucounts(new) < 0)
+		ret = set_cred_ucounts(new);
+		if (ret < 0)
 			goto error_put;
 	}
 
-- 
2.25.1