HID: roccat: fix NULL pointer dereference, add range checks

[pandora-kernel.git] / drivers / hid / hid-roccat-pyra.c

diff --git a/drivers/hid/hid-roccat-pyra.c b/drivers/hid/hid-roccat-pyra.c
index 75a092e..8140776 100644 (file)
--- a/drivers/hid/hid-roccat-pyra.c
+++ b/drivers/hid/hid-roccat-pyra.c
@@ -637,6 +637,9 @@ static int pyra_raw_event(struct hid_device *hdev, struct hid_report *report,
                        != USB_INTERFACE_PROTOCOL_MOUSE)
                return 0;
 
+       if (pyra == NULL)
+               return 0;
+
        pyra_keep_values_up_to_date(pyra, data);
 
        if (pyra->roccat_claimed)