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Harding" To: Miroslav Benes Cc: "Tobin C. Harding" , Josh Poimboeuf , Jiri Kosina , Petr Mladek , Greg Kroah-Hartman , Joe Lawrence , live-patching@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 2/2] livepatch: Use correct kobject cleanup function Message-ID: <20190430213827.GD9454@eros.localdomain> References: <20190430001534.26246-1-tobin@kernel.org> <20190430001534.26246-3-tobin@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Mailer: Mutt 1.11.4 (2019-03-13) User-Agent: Mutt/1.11.4 (2019-03-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 > > --- > > 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.