6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Steve French <stfrench@xxxxxxxxxxxxx>
commit 193cc89ea0ca1da311877d2b4bb5e9f03bcc82a2 upstream.
Dan Carpenter reported a Smack static checker warning:
fs/smb/client/cifsfs.c:1981 init_cifs()
error: we previously assumed 'serverclose_wq' could be null (see line 1895)
The patch which introduced the serverclose workqueue used the wrong
oredering in error paths in init_cifs() for freeing it on errors.
Fixes: 173217bd7336 ("smb3: retrying on failed server close")
Cc: stable@xxxxxxxxxxxxxxx
Cc: Ritvik Budhiraja <rbudhiraja@xxxxxxxxxxxxx>
Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Reviewed-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Reviewed-by: David Howells <dhowell@xxxxxxxxxx>
Signed-off-by: Steve French <stfrench@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/smb/client/cifsfs.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
--- a/fs/smb/client/cifsfs.c
+++ b/fs/smb/client/cifsfs.c
@@ -1885,12 +1885,12 @@ init_cifs(void)
WQ_FREEZABLE|WQ_MEM_RECLAIM, 0);
if (!serverclose_wq) {
rc = -ENOMEM;
- goto out_destroy_serverclose_wq;
+ goto out_destroy_deferredclose_wq;
}
rc = cifs_init_inodecache();
if (rc)
- goto out_destroy_deferredclose_wq;
+ goto out_destroy_serverclose_wq;
rc = init_mids();
if (rc)
@@ -1952,6 +1952,8 @@ out_destroy_mids:
destroy_mids();
out_destroy_inodecache:
cifs_destroy_inodecache();
+out_destroy_serverclose_wq:
+ destroy_workqueue(serverclose_wq);
out_destroy_deferredclose_wq:
destroy_workqueue(deferredclose_wq);
out_destroy_cifsoplockd_wq:
@@ -1962,8 +1964,6 @@ out_destroy_decrypt_wq:
destroy_workqueue(decrypt_wq);
out_destroy_cifsiod_wq:
destroy_workqueue(cifsiod_wq);
-out_destroy_serverclose_wq:
- destroy_workqueue(serverclose_wq);
out_clean_proc:
cifs_proc_clean();
return rc;
