linux-kernel - Re: [PATCH -next] ipmi/powernv: Fix error return code in ipmi_powernv

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Date:   Wed, 17 Jan 2018 09:52:47 -0600
From:   Corey Minyard <minyard@....org>
To:     Wei Yongjun <weiyongjun1@...wei.com>
Cc:     openipmi-developer@...ts.sourceforge.net,
        linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
        Jeremy Kerr <jk@...abs.org>,
        "Michael, Ellerman" <mpe@...erman.id.au>,
        Alistair Popple <alistair@...ple.id.au>
Subject: Re: [PATCH -next] ipmi/powernv: Fix error return code in
 ipmi_powernv_probe()

On 01/17/2018 05:25 AM, Wei Yongjun wrote:
> Fix to return a negative error code from the request_irq() error
> handling case instead of 0, as done elsewhere in this function.

I think you are right here.  However, you had a bunch of people on the email
that probably didn't need to be there, and didn't have a few that should.
I've adjusted in this response.

This was introduced in change dce143c3381c355ef73be3dd97cf3ca1b15359b8,
you should add a "Fixes:" in the commit text.

I'll let the people that did this code comment, just to be sure, and 
wait for
a v2 patch from you after that.

Thanks,

-corey

> Signed-off-by: Wei Yongjun <weiyongjun1@...wei.com>
> ---
>   drivers/char/ipmi/ipmi_powernv.c | 5 +++--
>   1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/char/ipmi/ipmi_powernv.c b/drivers/char/ipmi/ipmi_powernv.c
> index c687c8d..bcf493d 100644
> --- a/drivers/char/ipmi/ipmi_powernv.c
> +++ b/drivers/char/ipmi/ipmi_powernv.c
> @@ -250,8 +250,9 @@ static int ipmi_powernv_probe(struct platform_device *pdev)
>   		ipmi->irq = opal_event_request(prop);
>   	}
>   
> -	if (request_irq(ipmi->irq, ipmi_opal_event, IRQ_TYPE_LEVEL_HIGH,
> -				"opal-ipmi", ipmi)) {
> +	rc = request_irq(ipmi->irq, ipmi_opal_event, IRQ_TYPE_LEVEL_HIGH,
> +			 "opal-ipmi", ipmi);
> +	if (rc) {
>   		dev_warn(dev, "Unable to request irq\n");
>   		goto err_dispose;
>   	}
>