[PATCH v2] remoteproc: mtk_scp: Fix a potential double free

Christophe JAILLET posted 1 patch 2 years, 5 months ago
drivers/remoteproc/mtk_scp.c | 1 -
1 file changed, 1 deletion(-)
[PATCH v2] remoteproc: mtk_scp: Fix a potential double free
Posted by Christophe JAILLET 2 years, 5 months ago
'scp->rproc' is allocated using devm_rproc_alloc(), so there is no need
to free it explicitly in the remove function.

Fixes: c1407ac1099a ("remoteproc: mtk_scp: Use devm variant of rproc_alloc()")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
v1 -> v2:
	- add missing Signed-off-by
---
 drivers/remoteproc/mtk_scp.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/remoteproc/mtk_scp.c b/drivers/remoteproc/mtk_scp.c
index 38609153bf64..4a0e6c4bc6f4 100644
--- a/drivers/remoteproc/mtk_scp.c
+++ b/drivers/remoteproc/mtk_scp.c
@@ -877,7 +877,6 @@ static int scp_remove(struct platform_device *pdev)
 	for (i = 0; i < SCP_IPI_MAX; i++)
 		mutex_destroy(&scp->ipi_desc[i].lock);
 	mutex_destroy(&scp->send_lock);
-	rproc_free(scp->rproc);
 
 	return 0;
 }
-- 
2.32.0
Re: [PATCH v2] remoteproc: mtk_scp: Fix a potential double free
Posted by AngeloGioacchino Del Regno 2 years, 5 months ago
Il 09/04/22 08:27, Christophe JAILLET ha scritto:
> 'scp->rproc' is allocated using devm_rproc_alloc(), so there is no need
> to free it explicitly in the remove function.
> 
> Fixes: c1407ac1099a ("remoteproc: mtk_scp: Use devm variant of rproc_alloc()")
> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Re: [PATCH v2] remoteproc: mtk_scp: Fix a potential double free
Posted by Mathieu Poirier 2 years, 5 months ago
On Mon, Apr 11, 2022 at 10:55:52AM +0200, AngeloGioacchino Del Regno wrote:
> Il 09/04/22 08:27, Christophe JAILLET ha scritto:
> > 'scp->rproc' is allocated using devm_rproc_alloc(), so there is no need
> > to free it explicitly in the remove function.
> > 
> > Fixes: c1407ac1099a ("remoteproc: mtk_scp: Use devm variant of rproc_alloc()")
> > Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
> 
> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>

Applied.

Thanks,
Mathieu

> 
>