linux-kernel - [PATCH 2/2] dmaengine: axi-dmac: Request IRQ with IRQF

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Message-Id: <20180426161239.15234-2-mdf@kernel.org>
Date:   Thu, 26 Apr 2018 09:12:39 -0700
From:   Moritz Fischer <mdf@...nel.org>
To:     linux-kernel@...r.kernel.org
Cc:     dmaengine@...r.kernel.org, vinod.koul@...el.com,
        dan.j.williams@...el.com, lars@...afoo.de,
        Moritz Fischer <mdf@...nel.org>
Subject: [PATCH 2/2] dmaengine: axi-dmac: Request IRQ with IRQF_SHARED

Request IRQ with IRQF_SHARED flag. This works since the interrupt
handler already checks if there is an actual IRQ pending and returns
IRQ_NONE otherwise.

Signed-off-by: Moritz Fischer <mdf@...nel.org>
---
 drivers/dma/dma-axi-dmac.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma/dma-axi-dmac.c b/drivers/dma/dma-axi-dmac.c
index 75ccedaa96d2..2bd195532882 100644
--- a/drivers/dma/dma-axi-dmac.c
+++ b/drivers/dma/dma-axi-dmac.c
@@ -688,7 +688,7 @@ static int axi_dmac_probe(struct platform_device *pdev)
 		goto err_unregister_device;
 
 	ret = devm_request_irq(&pdev->dev, dmac->irq,
-			       axi_dmac_interrupt_handler, 0,
+			       axi_dmac_interrupt_handler, IRQF_SHARED,
 			       dev_name(&pdev->dev), dmac);
 	if (ret)
 		goto err_unregister_of;
-- 
2.17.0