diff options
| author | Nikolai Kondrashov <spbnick@gmail.com> | 2019-02-10 12:14:06 +0200 |
|---|---|---|
| committer | Benjamin Tissoires <benjamin.tissoires@redhat.com> | 2019-02-21 12:00:54 +0100 |
| commit | 8547b7789c62f81350422d357fdf48bfe5d9932f (patch) | |
| tree | ab2afeecc94325633bcf54979f2846c13845d865 /drivers/hid/hid-uclogic-params.c | |
| parent | e902ed9344873ba199093958ca7bdc3d125828f6 (diff) | |
HID: uclogic: Do not initialize non-USB devices
Do not try to initialize UC-Logic tablets if the underlying device is
not a USB device, but e.g. a uhid device.
Signed-off-by: Nikolai Kondrashov <spbnick@gmail.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Diffstat (limited to 'drivers/hid/hid-uclogic-params.c')
| -rw-r--r-- | drivers/hid/hid-uclogic-params.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/hid/hid-uclogic-params.c b/drivers/hid/hid-uclogic-params.c index b582739a570a..7710d9f957da 100644 --- a/drivers/hid/hid-uclogic-params.c +++ b/drivers/hid/hid-uclogic-params.c @@ -826,7 +826,8 @@ cleanup: * uclogic_params_cleanup()). Not modified in case of error. * Cannot be NULL. * @hdev: The HID device of the tablet interface to initialize and get - * parameters from. Cannot be NULL. + * parameters from. Cannot be NULL. Must be using the USB low-level + * driver, i.e. be an actual USB tablet. * * Returns: * Zero, if successful. A negative errno code on error. @@ -844,7 +845,8 @@ int uclogic_params_init(struct uclogic_params *params, struct uclogic_params p = {0, }; /* Check arguments */ - if (params == NULL || hdev == NULL) { + if (params == NULL || hdev == NULL || + !hid_is_using_ll_driver(hdev, &usb_hid_driver)) { rc = -EINVAL; goto cleanup; } |