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SubjectRe: [PATCH 9/16] HID: logitech-hidpp: fix error return code
From
On Sun, Apr 5, 2015 at 8:06 AM, Julia Lawall <Julia.Lawall@lip6.fr> wrote:
> Return a negative error code on failure.
>
> A simplified version of the semantic match that finds this problem is as
> follows: (http://coccinelle.lip6.fr/)
>
> // <smpl>
> @@
> identifier ret; expression e1,e2;
> @@
> (
> if (\(ret < 0\|ret != 0\))
> { ... return ret; }
> |
> ret = 0
> )
> ... when != ret = e1
> when != &ret
> *if(...)
> {
> ... when != ret = e2
> when forall
> return ret;
> }
> // </smpl>
>
> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
>
> ---

Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>

Thanks!
Benjamin

> drivers/hid/hid-logitech-hidpp.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/hid/hid-logitech-hidpp.c b/drivers/hid/hid-logitech-hidpp.c
> index e77658c..ce9819f 100644
> --- a/drivers/hid/hid-logitech-hidpp.c
> +++ b/drivers/hid/hid-logitech-hidpp.c
> @@ -1210,6 +1210,7 @@ static int hidpp_probe(struct hid_device *hdev, const struct hid_device_id *id)
> connected = hidpp_is_connected(hidpp);
> if (id->group != HID_GROUP_LOGITECH_DJ_DEVICE) {
> if (!connected) {
> + ret = -ENODEV;
> hid_err(hdev, "Device not connected");
> hid_device_io_stop(hdev);
> goto hid_parse_fail;
>
> --
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