[PATCH v2 16/42] ovl: port ovl_get_link() to cred guard

[Christian Brauner <brauner@kernel.org>]

Use the scoped ovl cred guard.

Signed-off-by: Christian Brauner <brauner@kernel.org>
---
 fs/overlayfs/inode.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c
index dca96db19f81..3a35f9b125f4 100644
--- a/fs/overlayfs/inode.c
+++ b/fs/overlayfs/inode.c
@@ -327,16 +327,11 @@ static const char *ovl_get_link(struct dentry *dentry,
 				struct inode *inode,
 				struct delayed_call *done)
 {
-	const struct cred *old_cred;
-	const char *p;
-
 	if (!dentry)
 		return ERR_PTR(-ECHILD);
 
-	old_cred = ovl_override_creds(dentry->d_sb);
-	p = vfs_get_link(ovl_dentry_real(dentry), done);
-	ovl_revert_creds(old_cred);
-	return p;
+	with_ovl_creds(dentry->d_sb)
+		return vfs_get_link(ovl_dentry_real(dentry), done);
 }
 
 #ifdef CONFIG_FS_POSIX_ACL

-- 
2.47.3