linux-kernel - [PATCH] dmaengine: pl08x: remove unneeded variable: "retval". Return "NULL"

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Date:   Thu, 17 Mar 2022 18:22:42 +0800
From:   Haowen Bai <baihaowen@...zu.com>
To:     <vkoul@...nel.org>
CC:     <dmaengine@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Haowen Bai <baihaowen@...zu.com>
Subject: [PATCH] dmaengine: pl08x: remove unneeded variable: "retval". Return "NULL"

Unneeded variable: "retval". Return "NULL" , so we have to make code clear.

Signed-off-by: Haowen Bai <baihaowen@...zu.com>
---
 drivers/dma/amba-pl08x.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/dma/amba-pl08x.c b/drivers/dma/amba-pl08x.c
index a24882b..c70552a 100644
--- a/drivers/dma/amba-pl08x.c
+++ b/drivers/dma/amba-pl08x.c
@@ -1538,9 +1538,7 @@ static void pl08x_free_chan_resources(struct dma_chan *chan)
 static struct dma_async_tx_descriptor *pl08x_prep_dma_interrupt(
 		struct dma_chan *chan, unsigned long flags)
 {
-	struct dma_async_tx_descriptor *retval = NULL;
-
-	return retval;
+	return NULL;
 }
 
 /*
-- 
2.7.4