[PATCH 19/24] cred: add auto cleanup method

[Christian Brauner <brauner@xxxxxxxxxx>]

Add a simple auto cleanup method for struct cred.

Signed-off-by: Christian Brauner <brauner@xxxxxxxxxx>
---
 include/linux/cred.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/linux/cred.h b/include/linux/cred.h
index 5658a3bfe803..a102a10f833f 100644
--- a/include/linux/cred.h
+++ b/include/linux/cred.h
@@ -263,6 +263,8 @@ static inline void put_cred(const struct cred *cred)
 	put_cred_many(cred, 1);
 }
 
+DEFINE_FREE(put_cred, struct cred *, if (!IS_ERR_OR_NULL(_T)) put_cred(_T))
+
 /**
  * current_cred - Access the current task's subjective credentials
  *

-- 
2.47.2