From: Sergey Shtylyov s.shtylyov@omp.ru
stable inclusion from stable-5.10.65 commit fa5dbfd53982fd98d1ccc234a9595d8e0489eff5 bugzilla: 182361 https://gitee.com/openeuler/kernel/issues/I4EH3U
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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[ Upstream commit ecc2f30dbb25969908115c81ec23650ed982b004 ]
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") Acked-by: Felipe Balbi balbi@kernel.org Signed-off-by: Sergey Shtylyov s.shtylyov@omp.ru Link: https://lore.kernel.org/r/b0a86089-8b8b-122e-fd6d-73e8c2304964@omp.ru Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Chen Jun chenjun102@huawei.com Acked-by: Weilong Chen chenweilong@huawei.com
Signed-off-by: Chen Jun chenjun102@huawei.com --- drivers/usb/phy/phy-fsl-usb.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/usb/phy/phy-fsl-usb.c b/drivers/usb/phy/phy-fsl-usb.c index f34c9437a182..972704262b02 100644 --- a/drivers/usb/phy/phy-fsl-usb.c +++ b/drivers/usb/phy/phy-fsl-usb.c @@ -873,6 +873,8 @@ int usb_otg_start(struct platform_device *pdev)
/* 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) {