linux-kernel - [PATCH v3] media: aspeed-video: Fix memory leaks in aspeed_video

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Message-Id: <20191028171838.28533-1-navid.emamdoost@gmail.com>
Date:   Mon, 28 Oct 2019 12:18:37 -0500
From:   Navid Emamdoost <navid.emamdoost@...il.com>
To:     jae.hyun.yoo@...ux.intel.com
Cc:     emamd001@....edu, smccaman@....edu, kjlu@....edu,
        Navid Emamdoost <navid.emamdoost@...il.com>,
        Eddie James <eajames@...ux.ibm.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Joel Stanley <joel@....id.au>,
        Andrew Jeffery <andrew@...id.au>, linux-media@...r.kernel.org,
        openbmc@...ts.ozlabs.org, linux-arm-kernel@...ts.infradead.org,
        linux-aspeed@...ts.ozlabs.org, linux-kernel@...r.kernel.org
Subject: [PATCH v3] media: aspeed-video: Fix memory leaks in aspeed_video_probe

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@...il.com>
---
Changes in v3:
	-- fix call to devm_kzalloc()
---
 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);
 
 	if (!video)
 		return -ENOMEM;
-- 
2.17.1