HID: bring back possibility to specify vid/pid ignore on module load

When hid quirks were converted to specialized driver, the HID_QUIRK_IGNORE
has been moved completely, as the hid_ignore_list[] has been moved into the
generic code.

However userspace already got used to the possibility that modprobing
usbhid with

	'quirks=vid:pid:0x4'

makes the device ignored by usbhid driver. So keep this quirk flag in place
for backwards compatibility.

Signed-off-by: Jiri Kosina <jkosina@suse.cz>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c
index f0a0f72238ab..eed05a3017e5 100644
--- a/drivers/hid/usbhid/hid-core.c
+++ b/drivers/hid/usbhid/hid-core.c
@@ -711,6 +711,9 @@ static int usbhid_parse(struct hid_device *hid)
         quirks = usbhid_lookup_quirk(le16_to_cpu(dev->descriptor.idVendor),
                         le16_to_cpu(dev->descriptor.idProduct));
 
+        if (quirks & HID_QUIRK_IGNORE)
+                return -ENODEV;
+
         /* Many keyboards and mice don't like to be polled for reports,
          * so we will always set the HID_QUIRK_NOGET flag for them. */
         if (interface->desc.bInterfaceSubClass == USB_INTERFACE_SUBCLASS_BOOT) {