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authorBenjamin Coddington <bcodding@redhat.com>2023-06-27 12:12:11 +0200
committerTrond Myklebust <trond.myklebust@hammerspace.com>2023-06-29 20:25:35 +0200
commite901f17b0742e36c9d79885a912b666cc1deb210 (patch)
tree35a3ece6c5d363c5b41027a9711c58b031677efa /fs/nfs
parentnfs: don't report STATX_BTIME in ->getattr (diff)
downloadlinux-e901f17b0742e36c9d79885a912b666cc1deb210.tar.xz
linux-e901f17b0742e36c9d79885a912b666cc1deb210.zip
NFS: Don't cleanup sysfs superblock entry if uninitialized
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: 1c7251187dc0 ("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>
Diffstat (limited to 'fs/nfs')
-rw-r--r--fs/nfs/client.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index 48c9d8411c0e..e4c5f193ed5e 100644
--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -1021,8 +1021,10 @@ void nfs_free_server(struct nfs_server *server)
nfs_put_client(server->nfs_client);
- nfs_sysfs_remove_server(server);
- kobject_put(&server->kobj);
+ 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);