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From: Wenwen Wang <wenwen@cs.uga.edu>
To: Wenwen Wang <wenwen@cs.uga.edu>
Cc: Hans Verkuil <hverkuil@xs4all.nl>,
	Mauro Carvalho Chehab <mchehab@kernel.org>,
	linux-media@vger.kernel.org (open list:SAA7146 VIDEO4LINUX-2
	DRIVER), linux-kernel@vger.kernel.org (open list)
Subject: [PATCH v2] media: saa7146: add cleanup in hexium_attach()
Date: Sun, 18 Aug 2019 00:40:14 -0500	[thread overview]
Message-ID: <1566106814-2911-1-git-send-email-wenwen@cs.uga.edu> (raw)

If saa7146_register_device() fails, no cleanup is executed, leading to
memory/resource leaks. To fix this issue, perform necessary cleanup work
before returning the error.

Signed-off-by: Wenwen Wang <wenwen@cs.uga.edu>
---
 drivers/media/pci/saa7146/hexium_gemini.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/media/pci/saa7146/hexium_gemini.c b/drivers/media/pci/saa7146/hexium_gemini.c
index dca20a3..f962269 100644
--- a/drivers/media/pci/saa7146/hexium_gemini.c
+++ b/drivers/media/pci/saa7146/hexium_gemini.c
@@ -292,6 +292,9 @@ static int hexium_attach(struct saa7146_dev *dev, struct saa7146_pci_extension_d
 	ret = saa7146_register_device(&hexium->video_dev, dev, "hexium gemini", VFL_TYPE_GRABBER);
 	if (ret < 0) {
 		pr_err("cannot register capture v4l2 device. skipping.\n");
+		saa7146_vv_release(dev);
+		i2c_del_adapter(&hexium->i2c_adapter);
+		kfree(hexium);
 		return ret;
 	}
 
-- 
2.7.4


                 reply	other threads:[~2019-08-18  5:40 UTC|newest]

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