From: Dongliang Mu <dzm91@hust.edu.cn>
To: Peter Chen <peter.chen@kernel.org>,
Pawel Laszczak <pawell@cadence.com>,
Roger Quadros <rogerq@kernel.org>,
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: [PATCH] usb: cdns3: remove dead code
Date: Mon, 26 Sep 2022 21:59:21 +0800 [thread overview]
Message-ID: <20220926135922.24541-1-dzm91@hust.edu.cn> (raw)
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>
---
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");
--
2.35.1
next reply other threads:[~2022-09-26 15:19 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-26 13:59 Dongliang Mu [this message]
2022-09-28 6:40 ` [PATCH] usb: cdns3: remove dead code Pawel Laszczak
2022-09-28 6:49 ` Roger Quadros
2022-09-28 6:57 ` Dongliang Mu
2022-09-28 6:49 ` Roger Quadros
2022-09-28 7:04 ` Dongliang Mu
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