linux-kernel - [PATCH v2 01/10] dmaengine: imx-sdma: fix missing of_dma_controller

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20250911-v6-16-topic-sdma-v2-1-d315f56343b5@pengutronix.de>
Date: Thu, 11 Sep 2025 23:56:42 +0200
From: Marco Felsch <m.felsch@...gutronix.de>
To: Vinod Koul <vkoul@...nel.org>, Shawn Guo <shawnguo@...nel.org>, 
 Sascha Hauer <s.hauer@...gutronix.de>, 
 Pengutronix Kernel Team <kernel@...gutronix.de>, 
 Fabio Estevam <festevam@...il.com>, Jiada Wang <jiada_wang@...tor.com>
Cc: dmaengine@...r.kernel.org, imx@...ts.linux.dev, 
 linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, 
 Marco Felsch <m.felsch@...gutronix.de>
Subject: [PATCH v2 01/10] dmaengine: imx-sdma: fix missing
 of_dma_controller_free()

Add the missing of_dma_controller_free() to free the resources allocated
via of_dma_controller_register() during probe(). The missing free was
introduced long time ago  by commit 23e118113782 ("dma: imx-sdma: use
module_platform_driver for SDMA driver") while adding a proper .remove()
implementation.

Use the driver remove() callback to make it possible to backport this
commit.

Fixes: 23e118113782 ("dma: imx-sdma: use module_platform_driver for SDMA driver")
Signed-off-by: Marco Felsch <m.felsch@...gutronix.de>
---
 drivers/dma/imx-sdma.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c
index 02a85d6f1bea2df7d355858094c0c0b0bd07148e..3ecb917214b1268b148a29df697b780bc462afa4 100644
--- a/drivers/dma/imx-sdma.c
+++ b/drivers/dma/imx-sdma.c
@@ -2418,6 +2418,7 @@ static void sdma_remove(struct platform_device *pdev)
 	struct sdma_engine *sdma = platform_get_drvdata(pdev);
 	int i;
 
+	of_dma_controller_free(sdma->dev->of_node);
 	devm_free_irq(&pdev->dev, sdma->irq, sdma);
 	dma_async_device_unregister(&sdma->dma_device);
 	kfree(sdma->script_addrs);

-- 
2.47.3