linux-kernel - [V3 2/2] dmaengine: fsl-qdma: Add improvement

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Message-Id: <20190522032103.13713-2-peng.ma@nxp.com>
Date:   Wed, 22 May 2019 03:21:03 +0000
From:   Peng Ma <peng.ma@....com>
To:     vkoul@...nel.org, dan.j.williams@...el.com
Cc:     dmaengine@...r.kernel.org, linux-kernel@...r.kernel.org,
        Peng Ma <peng.ma@....com>
Subject: [V3 2/2] dmaengine: fsl-qdma: Add improvement

When an error occurs we should clean the error register then to return

Signed-off-by: Peng Ma <peng.ma@....com>
---
changed for V3:
	- no changed.

 drivers/dma/fsl-qdma.c |    4 +---
 1 files changed, 1 insertions(+), 3 deletions(-)

diff --git a/drivers/dma/fsl-qdma.c b/drivers/dma/fsl-qdma.c
index da8fdf5..8e341c0 100644
--- a/drivers/dma/fsl-qdma.c
+++ b/drivers/dma/fsl-qdma.c
@@ -703,10 +703,8 @@ static irqreturn_t fsl_qdma_error_handler(int irq, void *dev_id)
 
 	intr = qdma_readl(fsl_qdma, status + FSL_QDMA_DEDR);
 
-	if (intr) {
+	if (intr)
 		dev_err(fsl_qdma->dma_dev.dev, "DMA transaction error!\n");
-		return IRQ_NONE;
-	}
 
 	qdma_writel(fsl_qdma, FSL_QDMA_DEDR_CLEAR, status + FSL_QDMA_DEDR);
 	return IRQ_HANDLED;
-- 
1.7.1