linux-kernel - [PATCH 1/4] dmaengine: ep93xx_dma: Remove unneeded ERROR check before clk

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Date:   Mon, 16 May 2022 16:41:36 +0800
From:   Wan Jiabing <wanjiabing@...o.com>
To:     Vinod Koul <vkoul@...nel.org>, Orson Zhai <orsonzhai@...il.com>,
        Baolin Wang <baolin.wang7@...il.com>,
        Chunyan Zhang <zhang.lyra@...il.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        dmaengine@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Cc:     Wan Jiabing <wanjiabing@...o.com>
Subject: [PATCH 1/4] dmaengine: ep93xx_dma: Remove unneeded ERROR check before clk_put

clk_put() already uses !clk and IS_ERR(clk) to check ERROR or NULL.
Remove unneeded ERROR or NULL check for edmac->clk.

Signed-off-by: Wan Jiabing <wanjiabing@...o.com>
---
 drivers/dma/ep93xx_dma.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/dma/ep93xx_dma.c b/drivers/dma/ep93xx_dma.c
index 971ff5f9ae84..60dc7b3f3d0d 100644
--- a/drivers/dma/ep93xx_dma.c
+++ b/drivers/dma/ep93xx_dma.c
@@ -1398,8 +1398,7 @@ static int __init ep93xx_dma_probe(struct platform_device *pdev)
 	if (unlikely(ret)) {
 		for (i = 0; i < edma->num_channels; i++) {
 			struct ep93xx_dma_chan *edmac = &edma->channels[i];
-			if (!IS_ERR_OR_NULL(edmac->clk))
-				clk_put(edmac->clk);
+			clk_put(edmac->clk);
 		}
 		kfree(edma);
 	} else {
-- 
2.36.1