From: Sergey Shtylyov <s.shtylyov@omp.ru>
To: <linux-usb@vger.kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Felipe Balbi <balbi@kernel.org>
Subject: [PATCH v2 8/9] usb: phy: tahvo: add IRQ check
Date: Mon, 9 Aug 2021 23:52:05 +0300 [thread overview]
Message-ID: <71d33de9-ffee-705d-843a-dfc1b1c0bbc6@omp.ru> (raw)
In-Reply-To: <47bacc02-4e34-3208-779c-7072a6261782@omp.ru>
The driver neglects to check the result of platform_get_irq()'s call and
blithely passes the negative error codes to request_irq() (which takes
*unsigned* IRQ #), causing it to fail with -EINVAL, overriding an original
error code. Stop calling request_irq() with the invalid IRQ #s.
Fixes: 0807c500a1a6 ("USB: add Freescale USB OTG Transceiver driver")
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
---
drivers/usb/phy/phy-fsl-usb.c | 2 ++
1 file changed, 2 insertions(+)
Index: usb/drivers/usb/phy/phy-fsl-usb.c
===================================================================
--- usb.orig/drivers/usb/phy/phy-fsl-usb.c
+++ usb/drivers/usb/phy/phy-fsl-usb.c
@@ -873,6 +873,8 @@ int usb_otg_start(struct platform_device
/* request irq */
p_otg->irq = platform_get_irq(pdev, 0);
+ if (p_otg->irq < 0)
+ return p_otg->irq;
status = request_irq(p_otg->irq, fsl_otg_isr,
IRQF_SHARED, driver_name, p_otg);
if (status) {
next prev parent reply other threads:[~2021-08-09 20:52 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-09 20:16 [PATCH v2 0/9] Stop calling request_irq(), etc. with invalid IRQs in the USB drivers Sergey Shtylyov
2021-08-09 20:21 ` [PATCH v2 1/9] usb: dwc3: meson-g12a: add IRQ check Sergey Shtylyov
2021-08-09 20:23 ` [PATCH v2 2/9] usb: dwc3: qcom: " Sergey Shtylyov
2021-08-09 20:27 ` [PATCH v2 3/6] usb: gadget: udc: at91: " Sergey Shtylyov
2021-08-09 20:35 ` [PATCH v2 4/9] usb: gadget: udc: s3c2410: " Sergey Shtylyov
2021-08-10 6:53 ` Krzysztof Kozlowski
2021-08-12 5:40 ` Felipe Balbi
2021-08-09 20:41 ` [PATCH v2 5/9] usb: host: ohci-tmio: " Sergey Shtylyov
2021-08-09 20:54 ` Alan Stern
2021-08-09 20:45 ` [PATCH v2 6/9] usb: misc: brcmstb-usb-pinmap: " Sergey Shtylyov
2021-08-10 9:51 ` Florian Fainelli
2021-08-09 20:50 ` [PATCH v2 7/9] usb: phy: fsl-usb: " Sergey Shtylyov
2021-08-12 5:38 ` Felipe Balbi
2021-08-09 20:52 ` Sergey Shtylyov [this message]
2021-08-12 5:39 ` [PATCH v2 8/9] usb: phy: tahvo: " Felipe Balbi
2021-08-13 7:02 ` Greg Kroah-Hartman
2021-08-13 10:33 ` Sergey Shtylyov
2021-08-09 20:53 ` [PATCH v2 9/9] usb: phy: twl6030: add IRQ checks Sergey Shtylyov
2021-08-12 5:39 ` Felipe Balbi
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