HID: quirks: Add quirk for HP MSU1465 PIXART OEM mouse

[mirror_ubuntu-bionic-kernel.git] / drivers / hid / hid-lg3ff.c

diff --git a/drivers/hid/hid-lg3ff.c b/drivers/hid/hid-lg3ff.c
index 8c2da183d3bc71354d82b635b5234a70ca106850..acf739fc40603dcc9fdd4e44668231b760f931c5 100644 (file)
--- a/drivers/hid/hid-lg3ff.c
+++ b/drivers/hid/hid-lg3ff.c
@@ -129,12 +129,19 @@ static const signed short ff3_joystick_ac[] = {
 
 int lg3ff_init(struct hid_device *hid)
 {
-       struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list);
-       struct input_dev *dev = hidinput->input;
+       struct hid_input *hidinput;
+       struct input_dev *dev;
        const signed short *ff_bits = ff3_joystick_ac;
        int error;
        int i;
 
+       if (list_empty(&hid->inputs)) {
+               hid_err(hid, "no inputs found\n");
+               return -ENODEV;
+       }
+       hidinput = list_entry(hid->inputs.next, struct hid_input, list);
+       dev = hidinput->input;
+
        /* Check that the report looks ok */
        if (!hid_validate_values(hid, HID_OUTPUT_REPORT, 0, 0, 35))
                return -ENODEV;