[PATCH 02/26] cred: return old creds from revert_creds_light()

[Christian Brauner <brauner@xxxxxxxxxx>]

So we can easily convert revert_creds() callers over to drop the
reference count explicitly.

Signed-off-by: Christian Brauner <brauner@xxxxxxxxxx>
---
 include/linux/cred.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/include/linux/cred.h b/include/linux/cred.h
index e4a3155fe409d6b991fa6639005ebc233fc17dcc..382768a9707b5c3e6cbd3e8183769e1227a73107 100644
--- a/include/linux/cred.h
+++ b/include/linux/cred.h
@@ -185,9 +185,12 @@ static inline const struct cred *override_creds_light(const struct cred *overrid
 	return old;
 }
 
-static inline void revert_creds_light(const struct cred *revert_cred)
+static inline const struct cred *revert_creds_light(const struct cred *revert_cred)
 {
+	const struct cred *override_cred = current->cred;
+
 	rcu_assign_pointer(current->cred, revert_cred);
+	return override_cred;
 }
 
 /**

-- 
2.45.2