Re: [PATCH v2] usb: typec: fix an IS_ERR() vs NULL bug in hd3ss3220_probe()

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On Fri, Oct 11, 2019 at 09:50:55PM +0300, Dan Carpenter wrote:
> The device_get_named_child_node() function doesn't return error
> pointers, it returns NULL on error.
> 
> Fixes: 1c48c759ef4b ("usb: typec: driver for TI HD3SS3220 USB Type-C DRP port controller")
> Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>

Reviewed-by: Heikki Krogerus <heikki.krogerus@xxxxxxxxxxxxxxx>

> ---
> v2: remove -ENODEV instead of -EIO
> 
>  drivers/usb/typec/hd3ss3220.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/usb/typec/hd3ss3220.c b/drivers/usb/typec/hd3ss3220.c
> index 9715600aeb04..8afaf5768a17 100644
> --- a/drivers/usb/typec/hd3ss3220.c
> +++ b/drivers/usb/typec/hd3ss3220.c
> @@ -172,8 +172,8 @@ static int hd3ss3220_probe(struct i2c_client *client,
>  	hd3ss3220_set_source_pref(hd3ss3220,
>  				  HD3SS3220_REG_GEN_CTRL_SRC_PREF_DRP_DEFAULT);
>  	connector = device_get_named_child_node(hd3ss3220->dev, "connector");
> -	if (IS_ERR(connector))
> -		return PTR_ERR(connector);
> +	if (!connector)
> +		return -ENODEV;
>  
>  	hd3ss3220->role_sw = fwnode_usb_role_switch_get(connector);
>  	fwnode_handle_put(connector);
> -- 
> 2.20.1

thanks,

-- 
heikki



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