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HID: lenovo-tpkbd: fix leak if tpkbd_probe_tp fails

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If tpkbd_probe_tp() bails out, the probe() function return an error,
but hid_hw_stop() is never called.

fixes:
https://bugzilla.redhat.com/show_bug.cgi?id=1003998

Cc: stable@vger.kernel.org
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
Benjamin Tissoires 2013-09-11 21:56:59 +02:00 committed by Jiri Kosina
parent 8821f5dc18
commit 0ccdd9e747
1 changed files with 10 additions and 5 deletions
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15
drivers/hid/hid-lenovo-tpkbd.c
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@ -414,22 +414,27 @@ static int tpkbd_probe(struct hid_device *hdev,
ret = hid_parse(hdev);
if (ret) {
hid_err(hdev, "hid_parse failed\n");
goto err_free;
goto err;
}
ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
if (ret) {
hid_err(hdev, "hid_hw_start failed\n");
goto err_free;
goto err;
}
uhdev = (struct usbhid_device *) hdev->driver_data;
if (uhdev->ifnum == 1)
return tpkbd_probe_tp(hdev);
if (uhdev->ifnum == 1) {
ret = tpkbd_probe_tp(hdev);
if (ret)
goto err_hid;
}
return 0;
err_free:
err_hid:
hid_hw_stop(hdev);
err:
return ret;
}