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media: saa7146: add cleanup in hexium_attach() 

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>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This commit is contained in:
Wenwen Wang 2019-08-18 02:40:14 -03:00 committed by Mauro Carvalho Chehab
parent 725a28290a
commit 42e64117d3
1 changed files with 3 additions and 0 deletions
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3
drivers/media/pci/saa7146/hexium_gemini.c
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@ -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;
}