linux-kernel - [PATCH 1/2] PCI: dra7xx: Fix threaded IRQ request for "dra7xx-pcie-main" IRQ

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Message-ID: <20240827122422.985547-2-s-vadapalli@ti.com>
Date: Tue, 27 Aug 2024 17:54:21 +0530
From: Siddharth Vadapalli <s-vadapalli@...com>
To: <bhelgaas@...gle.com>, <lpieralisi@...nel.org>, <kw@...ux.com>,
        <robh@...nel.org>, <vigneshr@...com>, <kishon@...nel.org>,
        <manivannan.sadhasivam@...aro.org>, <j-keerthy@...com>
CC: <linux-omap@...r.kernel.org>, <linux-pci@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>,
        <stable@...r.kernel.org>, <u-kumar1@...com>, <srk@...com>,
        <s-vadapalli@...com>
Subject: [PATCH 1/2] PCI: dra7xx: Fix threaded IRQ request for "dra7xx-pcie-main" IRQ

Commit da87d35a6e51 ("PCI: dra7xx: Use threaded IRQ handler for
"dra7xx-pcie-main" IRQ") switched from devm_request_irq() to
devm_request_threaded_irq() for the "dra7xx-pcie-main" interrupt.
Since the primary handler was set to NULL, the "IRQF_ONESHOT" flag
should have also been set. Fix this.

Fixes: da87d35a6e51 ("PCI: dra7xx: Use threaded IRQ handler for "dra7xx-pcie-main" IRQ")
Cc: <stable@...r.kernel.org>
Reported-by: Udit Kumar <u-kumar1@...com>
Suggested-by: Vignesh Raghavendra <vigneshr@...com>
Signed-off-by: Siddharth Vadapalli <s-vadapalli@...com>
---
 drivers/pci/controller/dwc/pci-dra7xx.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/pci/controller/dwc/pci-dra7xx.c b/drivers/pci/controller/dwc/pci-dra7xx.c
index 4fe3b0cb72ec..20fb50741f3d 100644
--- a/drivers/pci/controller/dwc/pci-dra7xx.c
+++ b/drivers/pci/controller/dwc/pci-dra7xx.c
@@ -850,7 +850,8 @@ static int dra7xx_pcie_probe(struct platform_device *pdev)
 	dra7xx->mode = mode;
 
 	ret = devm_request_threaded_irq(dev, irq, NULL, dra7xx_pcie_irq_handler,
-			       IRQF_SHARED, "dra7xx-pcie-main", dra7xx);
+					IRQF_SHARED | IRQF_ONESHOT,
+					"dra7xx-pcie-main", dra7xx);
 	if (ret) {
 		dev_err(dev, "failed to request irq\n");
 		goto err_gpio;
-- 
2.40.1