From: "Tobin C. Harding" <me@tobin.cc>
To: Miroslav Benes <mbenes@suse.cz>
Cc: "Tobin C. Harding" <tobin@kernel.org>,
Josh Poimboeuf <jpoimboe@redhat.com>,
Jiri Kosina <jikos@kernel.org>, Petr Mladek <pmladek@suse.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Joe Lawrence <joe.lawrence@redhat.com>,
live-patching@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/2] livepatch: Use correct kobject cleanup function
Date: Wed, 1 May 2019 07:38:27 +1000 [thread overview]
Message-ID: <20190430213827.GD9454@eros.localdomain> (raw)
In-Reply-To: <alpine.LSU.2.21.1904301256550.8507@pobox.suse.cz>
On Tue, Apr 30, 2019 at 01:00:05PM +0200, Miroslav Benes wrote:
> On Tue, 30 Apr 2019, Tobin C. Harding wrote:
>
> > The correct cleanup function after a call to kobject_init_and_add() has
> > succeeded is kobject_del() _not_ kobject_put(). kobject_del() calls
> > kobject_put().
> >
> > Use correct cleanup function when removing a kobject.
> >
> > Signed-off-by: Tobin C. Harding <tobin@kernel.org>
> > ---
> > kernel/livepatch/core.c | 8 +++-----
> > 1 file changed, 3 insertions(+), 5 deletions(-)
> >
> > diff --git a/kernel/livepatch/core.c b/kernel/livepatch/core.c
> > index 98a7bec41faa..4cce6bb6e073 100644
> > --- a/kernel/livepatch/core.c
> > +++ b/kernel/livepatch/core.c
> > @@ -589,9 +589,8 @@ static void __klp_free_funcs(struct klp_object *obj, bool nops_only)
> >
> > list_del(&func->node);
> >
> > - /* Might be called from klp_init_patch() error path. */
>
> Could you leave the comment as is? If I am not mistaken, it is still
> valid. func->kobj_added check is here exactly because the function may be
> called as mentioned.
Will put it back in for you on v2
thanks,
Tobin.
next prev parent reply other threads:[~2019-04-30 21:39 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-30 0:15 [PATCH 0/2] livepatch: Fix usage of kobject_init_and_add() Tobin C. Harding
2019-04-30 0:15 ` [PATCH 1/2] livepatch: Fix kobject memleak Tobin C. Harding
2019-04-30 8:42 ` Greg Kroah-Hartman
2019-04-30 10:44 ` Miroslav Benes
2019-04-30 10:46 ` Greg Kroah-Hartman
2019-04-30 22:39 ` Tobin C. Harding
2019-04-30 14:56 ` Petr Mladek
2019-04-30 15:10 ` Greg Kroah-Hartman
2019-04-30 0:15 ` [PATCH 2/2] livepatch: Use correct kobject cleanup function Tobin C. Harding
2019-04-30 8:43 ` Greg Kroah-Hartman
2019-04-30 11:00 ` Miroslav Benes
2019-04-30 21:38 ` Tobin C. Harding [this message]
2019-04-30 15:08 ` Petr Mladek
2019-04-30 21:37 ` Tobin C. Harding
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