linux-kernel - [PATCH 1/2] dmaengine: mmp_tdma: add missed of_dma_controller

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Message-Id: <20191115083100.12220-1-hslester96@gmail.com>
Date:   Fri, 15 Nov 2019 16:31:00 +0800
From:   Chuhong Yuan <hslester96@...il.com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     Dan Williams <dan.j.williams@...el.com>,
        Vinod Koul <vkoul@...nel.org>, dmaengine@...r.kernel.org,
        linux-kernel@...r.kernel.org, Chuhong Yuan <hslester96@...il.com>
Subject: [PATCH 1/2] dmaengine: mmp_tdma: add missed of_dma_controller_free

The driver calls of_dma_controller_register in probe but does not free
it in remove.
Add the call to fix it.

Signed-off-by: Chuhong Yuan <hslester96@...il.com>
---
 drivers/dma/mmp_tdma.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/dma/mmp_tdma.c b/drivers/dma/mmp_tdma.c
index e7d1e12bf464..10117f271b12 100644
--- a/drivers/dma/mmp_tdma.c
+++ b/drivers/dma/mmp_tdma.c
@@ -544,6 +544,9 @@ static void mmp_tdma_issue_pending(struct dma_chan *chan)
 
 static int mmp_tdma_remove(struct platform_device *pdev)
 {
+	if (pdev->dev.of_node)
+		of_dma_controller_free(pdev->dev.of_node);
+
 	return 0;
 }
 
-- 
2.24.0