[PATCH] media: saa7146: add cleanup in hexium_attach()

[Wenwen Wang]

If saa7146_register_device(), 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 <wen...@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