linux-kernel - [PATCH 1/3] uio_pdrv_genirq: Remove warning when irq is not specified

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Message-Id: <20200701145659.3978-2-esben@geanix.com>
Date:   Wed,  1 Jul 2020 16:56:57 +0200
From:   Esben Haabendal <esben@...nix.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Subject: [PATCH 1/3] uio_pdrv_genirq: Remove warning when irq is not specified

Since e3a3c3a20555 ("UIO: fix uio_pdrv_genirq with device tree but no
interrupt"), the uio_pdrv_genirq has supported use without interrupt,
so the change in 7723f4c5ecdb ("driver core: platform: Add an error
message to") added false warnings for those cases.

Fixes: 7723f4c5ecdb ("driver core: platform: Add an error message to platform_get_irq*()")
Signed-off-by: Esben Haabendal <esben@...nix.com>
Cc: stable@...r.kernel.org
---
 drivers/uio/uio_pdrv_genirq.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/uio/uio_pdrv_genirq.c b/drivers/uio/uio_pdrv_genirq.c
index ae319ef3a832..1d69dd49c6d2 100644
--- a/drivers/uio/uio_pdrv_genirq.c
+++ b/drivers/uio/uio_pdrv_genirq.c
@@ -159,7 +159,7 @@ static int uio_pdrv_genirq_probe(struct platform_device *pdev)
 	priv->pdev = pdev;
 
 	if (!uioinfo->irq) {
-		ret = platform_get_irq(pdev, 0);
+		ret = platform_get_irq_optional(pdev, 0);
 		uioinfo->irq = ret;
 		if (ret == -ENXIO && pdev->dev.of_node)
 			uioinfo->irq = UIO_IRQ_NONE;
-- 
2.4.11