linux-kernel - Re: [PATCH -next] cifs: fix wrong unlock before return from cifs_tree

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Date:   Mon, 1 Aug 2022 08:02:13 +0530
From:   Shyam Prasad N <nspmangalore@...il.com>
To:     Steve French <smfrench@...il.com>
Cc:     Yang Yingliang <yangyingliang@...wei.com>,
        LKML <linux-kernel@...r.kernel.org>,
        CIFS <linux-cifs@...r.kernel.org>,
        Shyam Prasad N <sprasad@...rosoft.com>,
        Steve French <stfrench@...rosoft.com>
Subject: Re: [PATCH -next] cifs: fix wrong unlock before return from cifs_tree_connect()

On Fri, Jul 29, 2022 at 9:08 PM Steve French <smfrench@...il.com> wrote:
>
> merged into cifs-2.6.git for-next
>
> On Fri, Jul 29, 2022 at 2:45 AM Yang Yingliang <yangyingliang@...wei.com> wrote:
> >
> > It should unlock 'tcon->tc_lock' before return from cifs_tree_connect().
> >
> > Fixes: fe67bd563ec2 ("cifs: avoid use of global locks for high contention data")
> > Signed-off-by: Yang Yingliang <yangyingliang@...wei.com>
> > ---
> >  fs/cifs/connect.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
> > index 931d4b6fafc8..1362210f3ece 100644
> > --- a/fs/cifs/connect.c
> > +++ b/fs/cifs/connect.c
> > @@ -4583,7 +4583,7 @@ int cifs_tree_connect(const unsigned int xid, struct cifs_tcon *tcon, const stru
> >         if (tcon->ses->ses_status != SES_GOOD ||
> >             (tcon->status != TID_NEW &&
> >             tcon->status != TID_NEED_TCON)) {
> > -               spin_unlock(&tcon->ses->ses_lock);
> > +               spin_unlock(&tcon->tc_lock);
> >                 return 0;
> >         }
> >         tcon->status = TID_IN_TCON;
> > --
> > 2.25.1
> >
>
>
> --
> Thanks,
>
> Steve

Good catch. Looks good to me.

-- 
Regards,
Shyam