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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>
This commit is contained in:
Al Viro 2024-02-12 22:44:11 -05:00
parent 7e4a205fe5
commit 2c88c16dc2
1 changed files with 4 additions and 3 deletions
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7
fs/erofs/fscache.c
View File

@ -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;