linux-kernel - Re: [PATCH v12 2/4] reset: mediatek: Add MT2701 reset driver

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <1472271672.21203.17.camel@mtksdaap41>
Date:   Sat, 27 Aug 2016 12:21:12 +0800
From:   James Liao <jamesjj.liao@...iatek.com>
To:     Stephen Boyd <sboyd@...eaurora.org>
CC:     Erin Lo <erin.lo@...iatek.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Mike Turquette <mturquette@...libre.com>,
        "Rob Herring" <robh@...nel.org>, Arnd Bergmann <arnd@...db.de>,
        Sascha Hauer <kernel@...gutronix.de>,
        Daniel Kurtz <djkurtz@...omium.org>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-mediatek@...ts.infradead.org>, <linux-clk@...r.kernel.org>,
        <srv_heupstream@...iatek.com>,
        Shunli Wang <shunli.wang@...iatek.com>
Subject: Re: [PATCH v12 2/4] reset: mediatek: Add MT2701 reset driver

On Wed, 2016-08-24 at 10:50 -0700, Stephen Boyd wrote:
> On 08/22, Erin Lo wrote:
> > diff --git a/drivers/clk/mediatek/clk-mt2701-hif.c b/drivers/clk/mediatek/clk-mt2701-hif.c
> > index 18b4ab5..702fd74 100644
> > --- a/drivers/clk/mediatek/clk-mt2701-hif.c
> > +++ b/drivers/clk/mediatek/clk-mt2701-hif.c
> > @@ -52,11 +52,15 @@ static int mtk_hifsys_init(struct device_node *node)
> >  						clk_data);
> >  
> >  	r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
> > -	if (r)
> > +	if (r) {
> >  		pr_err("%s(): could not register clock provider: %d\n",
> >  			__func__, r);
> > +		return r;
> > +	}
> > +
> > +	mtk_register_reset_controller(node, 1, 0x34);
> 
> The cleanup here isn't great. mtk_register_reset_controller()
> should really return an error so that we can properly cleanup if
> needed. Fixing that in a later patch would be a good idea.

Hi Stephen,

I think so. This function returns void because it was invoked in
CLK_OF_DECLARE() in previous SoC's drivers. I'll investigate how to make
it return an error code without breaking backward compatibility.


Best regards,

James