From: Chuhong Yuan <hslester96@gmail.com>
Date: Fri, 15 Nov 2019 08:31:00 +0000 (+0800)
Subject: dmaengine: mmp_tdma: add missed of_dma_controller_free
X-Git-Tag: v5.5-rc1~78^2~5
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=c236ba4ae7183c1add8dbce91b27c700f7ef4168;p=linux-block.git

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@gmail.com>
Link: https://lore.kernel.org/r/20191115083100.12220-1-hslester96@gmail.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
---

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;
 }