linux-kernel - [PATCH] drivers: dma: using pm_runtime_resume_and_get instead of pm_runtime_get

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Message-Id: <20220411013504.2517012-1-chi.minghao@zte.com.cn>
Date:   Mon, 11 Apr 2022 01:35:04 +0000
From:   cgel.zte@...il.com
To:     sean.wang@...iatek.com
Cc:     vkoul@...nel.org, matthias.bgg@...il.com,
        dmaengine@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Minghao Chi <chi.minghao@....com.cn>,
        Zeal Robot <zealci@....com.cn>
Subject: [PATCH] drivers: dma: using pm_runtime_resume_and_get instead of pm_runtime_get_sync

From: Minghao Chi <chi.minghao@....com.cn>

Using pm_runtime_resume_and_get is more appropriate
for simplifing code

Reported-by: Zeal Robot <zealci@....com.cn>
Signed-off-by: Minghao Chi <chi.minghao@....com.cn>
---
 drivers/dma/mediatek/mtk-uart-apdma.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/dma/mediatek/mtk-uart-apdma.c b/drivers/dma/mediatek/mtk-uart-apdma.c
index 375e7e647df6..64bad5681447 100644
--- a/drivers/dma/mediatek/mtk-uart-apdma.c
+++ b/drivers/dma/mediatek/mtk-uart-apdma.c
@@ -274,11 +274,9 @@ static int mtk_uart_apdma_alloc_chan_resources(struct dma_chan *chan)
 	unsigned int status;
 	int ret;
 
-	ret = pm_runtime_get_sync(mtkd->ddev.dev);
-	if (ret < 0) {
-		pm_runtime_put_noidle(chan->device->dev);
+	ret = pm_runtime_resume_and_get(mtkd->ddev.dev);
+	if (ret < 0)
 		return ret;
-	}
 
 	mtk_uart_apdma_write(c, VFF_ADDR, 0);
 	mtk_uart_apdma_write(c, VFF_THRE, 0);
-- 
2.25.1