From: Roger Quadros <rogerq@kernel.org>
To: Dongliang Mu <dzm91@hust.edu.cn>,
Peter Chen <peter.chen@kernel.org>,
Pawel Laszczak <pawell@cadence.com>,
Aswath Govindraju <a-govindraju@ti.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Dongliang Mu <mudongliangabcd@gmail.com>,
linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] usb: cdns3: remove dead code
Date: Wed, 28 Sep 2022 09:49:58 +0300 [thread overview]
Message-ID: <8db6ca9c-6ceb-001e-3427-c7e320111d80@kernel.org> (raw)
In-Reply-To: <20220926135922.24541-1-dzm91@hust.edu.cn>
On 26/09/2022 16:59, Dongliang Mu wrote:
> From: Dongliang Mu <mudongliangabcd@gmail.com>
>
> Smatch reports the following error:
>
> drivers/usb/cdns3/cdns3-plat.c:113 cdns3_plat_probe() warn:
> platform_get_irq() does not return zero
>
> From the document, platform_get_irq_byname_optional only returns
> non-zero value, and negative value on failure.
>
> Fix this by removing the zero value checking.
>
> Signed-off-by: Dongliang Mu <mudongliangabcd@gmail.com>
Reviewed-by: Roger Quadros <rogerq@kernel.org>
> ---
> drivers/usb/cdns3/cdns3-plat.c | 2 --
> 1 file changed, 2 deletions(-)
>
> diff --git a/drivers/usb/cdns3/cdns3-plat.c b/drivers/usb/cdns3/cdns3-plat.c
> index dc068e940ed5..2bc5d094548b 100644
> --- a/drivers/usb/cdns3/cdns3-plat.c
> +++ b/drivers/usb/cdns3/cdns3-plat.c
> @@ -110,8 +110,6 @@ static int cdns3_plat_probe(struct platform_device *pdev)
> cdns->wakeup_irq = platform_get_irq_byname_optional(pdev, "wakeup");
> if (cdns->wakeup_irq == -EPROBE_DEFER)
> return cdns->wakeup_irq;
> - else if (cdns->wakeup_irq == 0)
> - return -EINVAL;
>
> if (cdns->wakeup_irq < 0) {
> dev_dbg(dev, "couldn't get wakeup irq\n");
cheers,
-roger
next prev parent reply other threads:[~2022-09-28 6:52 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-26 13:59 [PATCH] usb: cdns3: remove dead code Dongliang Mu
2022-09-28 6:40 ` Pawel Laszczak
2022-09-28 6:49 ` Roger Quadros
2022-09-28 6:57 ` Dongliang Mu
2022-09-28 6:49 ` Roger Quadros [this message]
2022-09-28 7:04 ` Dongliang Mu
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=8db6ca9c-6ceb-001e-3427-c7e320111d80@kernel.org \
--to=rogerq@kernel.org \
--cc=a-govindraju@ti.com \
--cc=dzm91@hust.edu.cn \
--cc=gregkh@linuxfoundation.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-usb@vger.kernel.org \
--cc=mudongliangabcd@gmail.com \
--cc=pawell@cadence.com \
--cc=peter.chen@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox