* [PATCH] media: imx: fix a potential memory leak in imx_media_csc_scaler_device_init()
@ 2025-02-26 14:21 Haoxiang Li
2025-02-26 14:41 ` Dan Carpenter
0 siblings, 1 reply; 2+ messages in thread
From: Haoxiang Li @ 2025-02-26 14:21 UTC (permalink / raw)
To: slongerbeam, p.zabel, mchehab, gregkh, shawnguo, s.hauer, kernel,
festevam, hverkuil
Cc: linux-media, linux-staging, imx, linux-arm-kernel, linux-kernel,
Haoxiang Li, stable
Add video_device_release() in label 'err_m2m' to release the memory
allocated by video_device_alloc() and prevent potential memory leaks.
Fixes: a8ef0488cc59 ("media: imx: add csc/scaler mem2mem device")
Cc: stable@vger.kernel.org
Signed-off-by: Haoxiang Li <haoxiang_li2024@163.com>
---
drivers/staging/media/imx/imx-media-csc-scaler.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/staging/media/imx/imx-media-csc-scaler.c b/drivers/staging/media/imx/imx-media-csc-scaler.c
index e5e08c6f79f2..f99c88e87a94 100644
--- a/drivers/staging/media/imx/imx-media-csc-scaler.c
+++ b/drivers/staging/media/imx/imx-media-csc-scaler.c
@@ -913,6 +913,7 @@ imx_media_csc_scaler_device_init(struct imx_media_dev *md)
err_m2m:
video_set_drvdata(vfd, NULL);
+ video_device_release(vfd);
err_vfd:
kfree(priv);
return ERR_PTR(ret);
--
2.25.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] media: imx: fix a potential memory leak in imx_media_csc_scaler_device_init()
2025-02-26 14:21 [PATCH] media: imx: fix a potential memory leak in imx_media_csc_scaler_device_init() Haoxiang Li
@ 2025-02-26 14:41 ` Dan Carpenter
0 siblings, 0 replies; 2+ messages in thread
From: Dan Carpenter @ 2025-02-26 14:41 UTC (permalink / raw)
To: Haoxiang Li
Cc: slongerbeam, p.zabel, mchehab, gregkh, shawnguo, s.hauer, kernel,
festevam, hverkuil, linux-media, linux-staging, imx,
linux-arm-kernel, linux-kernel, stable
On Wed, Feb 26, 2025 at 10:21:26PM +0800, Haoxiang Li wrote:
> Add video_device_release() in label 'err_m2m' to release the memory
> allocated by video_device_alloc() and prevent potential memory leaks.
>
> Fixes: a8ef0488cc59 ("media: imx: add csc/scaler mem2mem device")
> Cc: stable@vger.kernel.org
> Signed-off-by: Haoxiang Li <haoxiang_li2024@163.com>
> ---
> drivers/staging/media/imx/imx-media-csc-scaler.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/staging/media/imx/imx-media-csc-scaler.c b/drivers/staging/media/imx/imx-media-csc-scaler.c
> index e5e08c6f79f2..f99c88e87a94 100644
> --- a/drivers/staging/media/imx/imx-media-csc-scaler.c
> +++ b/drivers/staging/media/imx/imx-media-csc-scaler.c
> @@ -913,6 +913,7 @@ imx_media_csc_scaler_device_init(struct imx_media_dev *md)
>
> err_m2m:
> video_set_drvdata(vfd, NULL);
> + video_device_release(vfd);
The video_set_drvdata() call is pointless. It just does:
vfd.dev->driver_data = NULL;
but that's not necessary if we're just going to free "vfd" on the next
line.
regards,
dan carpenter
> err_vfd:
> kfree(priv);
> return ERR_PTR(ret);
^ permalink raw reply [flat|nested] 2+ messages in thread
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