From: Stephen Boyd <sboyd@codeaurora.org>
To: walter harms <wharms@bfs.de>
Cc: Christophe JAILLET <christophe.jaillet@wanadoo.fr>,
lars@metafoo.de, dan.carpenter@oracle.com, ssantosh@kernel.org,
mturquette@baylibre.com, linux-clk@vger.kernel.org,
linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org
Subject: Re: [PATCH 3/3] clk: keystone: Fix missing iounmap calls in an error handling path
Date: Tue, 25 Oct 2016 20:35:26 +0000 [thread overview]
Message-ID: <20161025203526.GA26139@codeaurora.org> (raw)
In-Reply-To: <580F04D9.108@bfs.de>
On 10/25, walter harms wrote:
> Am 24.10.2016 22:43, schrieb Christophe JAILLET:
> > @@ -220,6 +218,12 @@ static void __init _of_pll_clk_init(struct device_node *node, bool pllctrl)
> >
> > out:
> > pr_err("%s: error initializing pll %s\n", __func__, node->name);
> > + if (pll_data->pllm)
> > + iounmap(pll_data->pllm);
> > + if (pll_data->pll_ctl0)
> > + iounmap(pll_data->pll_ctl0);
> > + if (pll_data->pllod)
> > + iounmap(pll_data->pllod);
> > kfree(pll_data);
> > }
> >
>
> IMHO calles the iounmap() need no check for NULL.
>
ARM doesn't seem to check for NULL there though. So that would be
a bug.
It would be nice to remove the checks though. Perhaps someone
could do that by unifying ionumap into asm-generic with the NULL
check and then have architecture specific functions for the rest
of it?
--
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project
WARNING: multiple messages have this Message-ID (diff)
From: Stephen Boyd <sboyd@codeaurora.org>
To: walter harms <wharms@bfs.de>
Cc: Christophe JAILLET <christophe.jaillet@wanadoo.fr>,
lars@metafoo.de, dan.carpenter@oracle.com, ssantosh@kernel.org,
mturquette@baylibre.com, linux-clk@vger.kernel.org,
linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org
Subject: Re: [PATCH 3/3] clk: keystone: Fix missing iounmap calls in an error handling path
Date: Tue, 25 Oct 2016 13:35:26 -0700 [thread overview]
Message-ID: <20161025203526.GA26139@codeaurora.org> (raw)
In-Reply-To: <580F04D9.108@bfs.de>
On 10/25, walter harms wrote:
> Am 24.10.2016 22:43, schrieb Christophe JAILLET:
> > @@ -220,6 +218,12 @@ static void __init _of_pll_clk_init(struct device_node *node, bool pllctrl)
> >
> > out:
> > pr_err("%s: error initializing pll %s\n", __func__, node->name);
> > + if (pll_data->pllm)
> > + iounmap(pll_data->pllm);
> > + if (pll_data->pll_ctl0)
> > + iounmap(pll_data->pll_ctl0);
> > + if (pll_data->pllod)
> > + iounmap(pll_data->pllod);
> > kfree(pll_data);
> > }
> >
>
> IMHO calles the iounmap() need no check for NULL.
>
ARM doesn't seem to check for NULL there though. So that would be
a bug.
It would be nice to remove the checks though. Perhaps someone
could do that by unifying ionumap into asm-generic with the NULL
check and then have architecture specific functions for the rest
of it?
--
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project
next prev parent reply other threads:[~2016-10-25 20:35 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-24 20:43 [PATCH 0/3] clk: keystone: Fix some error handling paths Christophe JAILLET
2016-10-24 20:43 ` Christophe JAILLET
2016-10-24 20:43 ` [PATCH 1/3] clk: keystone: Fix an error checking Christophe JAILLET
2016-10-24 20:43 ` Christophe JAILLET
2016-11-02 0:22 ` Stephen Boyd
2016-11-02 0:22 ` Stephen Boyd
2016-11-04 5:43 ` Christophe JAILLET
2016-11-04 5:43 ` Christophe JAILLET
2016-10-24 20:43 ` [PATCH 2/3] clk: keystone: Fix some error messages Christophe JAILLET
2016-10-24 20:43 ` Christophe JAILLET
2016-10-24 20:43 ` [PATCH 3/3] clk: keystone: Fix missing iounmap calls in an error handling path Christophe JAILLET
2016-10-24 20:43 ` Christophe JAILLET
2016-10-25 7:08 ` walter harms
2016-10-25 7:08 ` walter harms
2016-10-25 20:35 ` Stephen Boyd [this message]
2016-10-25 20:35 ` Stephen Boyd
2016-10-26 12:14 ` walter harms
2016-10-28 0:19 ` Stephen Boyd
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