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HID: logitech-hidpp: fix error return code

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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>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
Julia Lawall 2015-04-05 14:06:29 +02:00 committed by Jiri Kosina
parent 9188dbaed6
commit b832da5602
1 changed files with 1 additions and 0 deletions
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1
drivers/hid/hid-logitech-hidpp.c
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@ -1220,6 +1220,7 @@ static int hidpp_probe(struct hid_device *hdev, const struct hid_device_id *id)
connected = hidpp_is_connected(hidpp); connected = hidpp_is_connected(hidpp);
if (id->group != HID_GROUP_LOGITECH_DJ_DEVICE) { if (id->group != HID_GROUP_LOGITECH_DJ_DEVICE) {
if (!connected) { if (!connected) {
ret = -ENODEV;
hid_err(hdev, "Device not connected"); hid_err(hdev, "Device not connected");
hid_device_io_stop(hdev); hid_device_io_stop(hdev);
goto hid_parse_fail; goto hid_parse_fail;