Re: [PATCH v3] media: aspeed-video: Fix memory leaks in aspeed_video_probe

From: Jae Hyun Yoo
Date: Mon Oct 28 2019 - 13:55:28 EST


On 10/28/2019 10:18 AM, Navid Emamdoost wrote:
In the implementation of aspeed_video_probe() the allocated memory for
video should be released if either devm_ioremap_resource()
or aspeed_video_init() or aspeed_video_setup_video() fails. Replace
kzalloc() with devm_kzalloc to avoid explicit release for video.

Fixes: d2b4387f3bdf ("media: platform: Add Aspeed Video Engine driver")
Signed-off-by: Navid Emamdoost <navid.emamdoost@xxxxxxxxx>
---
Changes in v3:
-- fix call to devm_kzalloc()

Better keep all change history at here.

---
drivers/media/platform/aspeed-video.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/media/platform/aspeed-video.c b/drivers/media/platform/aspeed-video.c
index eb12f3793062..70797b41447c 100644
--- a/drivers/media/platform/aspeed-video.c
+++ b/drivers/media/platform/aspeed-video.c
@@ -1646,7 +1646,8 @@ static int aspeed_video_probe(struct platform_device *pdev)
{
int rc;
struct resource *res;
- struct aspeed_video *video = kzalloc(sizeof(*video), GFP_KERNEL);
+ struct aspeed_video *video =
+ devm_kzalloc(&pdev->dev, sizeof(*video), GFP_KERNEL);

For a case of assignment in definition section, let it go over the 80
chars.

With this fixed:

Reviewed-by: Jae Hyun Yoo <jae.hyun.yoo@xxxxxxxxxxxxxxx>

if (!video)
return -ENOMEM;