linux-kernel - [PATCH] remoteproc: imx_rproc: Fix a resource leak in the remove function

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Message-Id: <d28ca94a4031bd7297d47c2164e18885a5a6ec19.1634366546.git.christophe.jaillet@wanadoo.fr>
Date:   Sat, 16 Oct 2021 08:44:28 +0200
From:   Christophe JAILLET <christophe.jaillet@...adoo.fr>
To:     ohad@...ery.com, bjorn.andersson@...aro.org,
        mathieu.poirier@...aro.org, shawnguo@...nel.org,
        s.hauer@...gutronix.de, kernel@...gutronix.de, festevam@...il.com,
        linux-imx@....com, hongxing.zhu@....com, peng.fan@....com
Cc:     linux-remoteproc@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        kernel-janitors@...r.kernel.org,
        Christophe JAILLET <christophe.jaillet@...adoo.fr>
Subject: [PATCH] remoteproc: imx_rproc: Fix a resource leak in the remove function

'priv->workqueue' is destroyed in the error handling path of the probe but
not in the remove function.

Add the missing call to release some resources.

Fixes: 2df7062002d0 ("remoteproc: imx_proc: enable virtio/mailbox")
Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
---
This patch is speculative. I'm not sure if the added function call is at
the right place in the remove function.
Review with care.
---
 drivers/remoteproc/imx_rproc.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/remoteproc/imx_rproc.c b/drivers/remoteproc/imx_rproc.c
index ff8170dbbc3c..0a45bc0d3f73 100644
--- a/drivers/remoteproc/imx_rproc.c
+++ b/drivers/remoteproc/imx_rproc.c
@@ -804,6 +804,7 @@ static int imx_rproc_remove(struct platform_device *pdev)
 	clk_disable_unprepare(priv->clk);
 	rproc_del(rproc);
 	imx_rproc_free_mbox(rproc);
+	destroy_workqueue(priv->workqueue);
 	rproc_free(rproc);
 
 	return 0;
-- 
2.30.2