[PATCH] media: usb: go7007: s2250-board: fix leak in probe()

[PATCH] media: usb: go7007: s2250-board: fix leak in probe()

[Dan Carpenter]

Call i2c_unregister_device(audio) on this error path.

Fixes: d3b2ccd9e307 ("[media] s2250: convert to the control framework")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
This seems like the correct fix bug the commit from the Fixes tag seems
very deliberate.  Were we waiting on another thread or something?  That's
a common reason to prefer a leak over a use after free.

Please review this one extra carefully, I guess.

 drivers/media/usb/go7007/s2250-board.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/media/usb/go7007/s2250-board.c b/drivers/media/usb/go7007/s2250-board.c
index c742cc88fac5..1fa6f10ee157 100644
--- a/drivers/media/usb/go7007/s2250-board.c
+++ b/drivers/media/usb/go7007/s2250-board.c
@@ -504,6 +504,7 @@ static int s2250_probe(struct i2c_client *client,
 	u8 *data;
 	struct go7007 *go = i2c_get_adapdata(adapter);
 	struct go7007_usb *usb = go->hpi_context;
+	int err = -EIO;
 
 	audio = i2c_new_dummy_device(adapter, TLV320_ADDRESS >> 1);
 	if (IS_ERR(audio))
@@ -532,11 +533,8 @@ static int s2250_probe(struct i2c_client *client,
 		V4L2_CID_HUE, -512, 511, 1, 0);
 	sd->ctrl_handler = &state->hdl;
 	if (state->hdl.error) {
-		int err = state->hdl.error;
-
-		v4l2_ctrl_handler_free(&state->hdl);
-		kfree(state);
-		return err;
+		err = state->hdl.error;
+		goto fail;
 	}
 
 	state->std = V4L2_STD_NTSC;
@@ -600,7 +598,7 @@ static int s2250_probe(struct i2c_client *client,
 	i2c_unregister_device(audio);
 	v4l2_ctrl_handler_free(&state->hdl);
 	kfree(state);
-	return -EIO;
+	return err;
 }
 
 static int s2250_remove(struct i2c_client *client)
-- 
2.20.1