From 2c88c16dc20e88dd54d2f6f4d01ae1dce6cc9654 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Mon, 12 Feb 2024 22:44:11 -0500
Subject: [PATCH] erofs: fix handling kern_mount() failure
if you have a variable that holds NULL or a pointer to live struct mount,
do not shove ERR_PTR() into it - not if you later treat "not NULL" as
"holds a pointer to object".
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
fs/erofs/fscache.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/fs/erofs/fscache.c b/fs/erofs/fscache.c
index bc12030393b24..29ad5b1cc7fde 100644
--- a/fs/erofs/fscache.c
+++ b/fs/erofs/fscache.c
@@ -381,11 +381,12 @@ static int erofs_fscache_init_domain(struct super_block *sb)
goto out;
if (!erofs_pseudo_mnt) {
- erofs_pseudo_mnt = kern_mount(&erofs_fs_type);
- if (IS_ERR(erofs_pseudo_mnt)) {
- err = PTR_ERR(erofs_pseudo_mnt);
+ struct vfsmount *mnt = kern_mount(&erofs_fs_type);
+ if (IS_ERR(mnt)) {
+ err = PTR_ERR(mnt);
goto out;
}
+ erofs_pseudo_mnt = mnt;
}
domain->volume = sbi->volume;
--
2.30.2