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NFS: Don't cleanup sysfs superblock entry if uninitialized

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Its possible to end up in nfs_free_server() before the server's superblock
sysfs entry has been initialized, in which case calling kobject_put() will
emit a WARNING.  Check if the kobject has been initialized before cleaning
it up.

Fixes: 1c7251187d ("NFS: add superblock sysfs entries")
Reported-by: Nathan Chancellor <nathan@kernel.org>
Tested-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Benjamin Coddington <bcodding@redhat.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
This commit is contained in:
Benjamin Coddington 2023-06-27 06:12:11 -04:00 committed by Trond Myklebust
parent cded49ba36
commit e901f17b07
1 changed files with 4 additions and 2 deletions
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2
fs/nfs/client.c
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@ -1021,8 +1021,10 @@ void nfs_free_server(struct nfs_server *server)
nfs_put_client(server->nfs_client);
if (server->kobj.state_initialized) {
nfs_sysfs_remove_server(server);
kobject_put(&server->kobj);
}
ida_free(&s_sysfs_ids, server->s_sysfs_id);
ida_destroy(&server->lockowner_id);