linux-kernel - [PATCH] usb: misc: eud: Add IRQ check for platform_get

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Message-Id: <20231102075113.1043358-1-nichen@iscas.ac.cn>
Date:   Thu,  2 Nov 2023 07:51:13 +0000
From:   Chen Ni <nichen@...as.ac.cn>
To:     agross@...nel.org, andersson@...nel.org, konrad.dybcio@...aro.org,
        quic_schowdhu@...cinc.com, gregkh@...uxfoundation.org
Cc:     linux-arm-msm@...r.kernel.org, linux-usb@...r.kernel.org,
        linux-kernel@...r.kernel.org, Chen Ni <nichen@...as.ac.cn>
Subject: [PATCH] usb: misc: eud: Add IRQ check for platform_get_irq()

The function eud_probe() should check the return value of
platform_get_irq() for errors so as to not pass a negative value to
the devm_request_threaded_irq().

Signed-off-by: Chen Ni <nichen@...as.ac.cn>
---
 drivers/usb/misc/qcom_eud.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/usb/misc/qcom_eud.c b/drivers/usb/misc/qcom_eud.c
index 7f371ea1248c..26e9b8749d8a 100644
--- a/drivers/usb/misc/qcom_eud.c
+++ b/drivers/usb/misc/qcom_eud.c
@@ -205,6 +205,9 @@ static int eud_probe(struct platform_device *pdev)
 		return PTR_ERR(chip->mode_mgr);
 
 	chip->irq = platform_get_irq(pdev, 0);
+	if (chip->irq < 0)
+		return chip->irq;
+
 	ret = devm_request_threaded_irq(&pdev->dev, chip->irq, handle_eud_irq,
 			handle_eud_irq_thread, IRQF_ONESHOT, NULL, chip);
 	if (ret)
-- 
2.25.1