From: Sergey Shtylyov <s.shtylyov@omp.ru>
To: <linux-usb@vger.kernel.org>,
Alan Stern <stern@rowland.harvard.edu>,
"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>
Cc: Vladimir Zapolskiy <vz@mleia.com>,
<linux-arm-kernel@lists.infradead.org>
Subject: [PATCH 11/22] usb: host: ohci-at91: deny IRQ0
Date: Mon, 18 Oct 2021 21:39:19 +0300 [thread overview]
Message-ID: <20211018183930.8448-12-s.shtylyov@omp.ru> (raw)
In-Reply-To: <20211018183930.8448-1-s.shtylyov@omp.ru>
If platform_get_irq() returns IRQ0 (considered invalid according to Linus)
the driver blithely passes it to usb_add_hcd() that treats IRQ0 as no IRQ
at all. Deny IRQ0 right away, returning -EINVAL from the probe() method...
Fixes: 60bbfc84b6d9 ("USB OHCI controller support for PNX4008")
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
---
drivers/usb/host/ohci-nxp.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/usb/host/ohci-nxp.c b/drivers/usb/host/ohci-nxp.c
index 85878e8ad331..afb9c2fc85c3 100644
--- a/drivers/usb/host/ohci-nxp.c
+++ b/drivers/usb/host/ohci-nxp.c
@@ -215,6 +215,10 @@ static int ohci_hcd_nxp_probe(struct platform_device *pdev)
ret = -ENXIO;
goto fail_resource;
}
+ if (!irq) {
+ ret = -EINVAL;
+ goto fail_resource;
+ }
ohci_nxp_start_hc();
platform_set_drvdata(pdev, hcd);
--
2.26.3
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next prev parent reply other threads:[~2021-10-18 18:41 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20211018183930.8448-1-s.shtylyov@omp.ru>
2021-10-18 18:39 ` [PATCH 01/22] usb: host: ehci-exynos: deny IRQ0 Sergey Shtylyov
2021-10-18 18:39 ` [PATCH 05/22] usb: host: ehci-platform: " Sergey Shtylyov
2021-10-18 18:39 ` [PATCH 07/22] usb: host: ehci-st: " Sergey Shtylyov
2021-10-18 18:39 ` [PATCH 08/22] usb: host: ohci-at91: " Sergey Shtylyov
2021-10-18 18:39 ` [PATCH 10/22] usb: host: ohci-exynos: " Sergey Shtylyov
2021-10-18 18:39 ` Sergey Shtylyov [this message]
2021-10-19 11:15 ` [PATCH 11/22] usb: host: ohci-at91: " Alexander Dahl
2021-10-19 16:51 ` Sergey Shtylyov
2021-10-18 18:39 ` [PATCH 17/22] usb: host: ohci-st: " Sergey Shtylyov
2021-10-18 18:39 ` [PATCH 20/22] usb: host: xhci-mtk: " Sergey Shtylyov
2021-10-20 7:32 ` Chunfeng Yun
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