HID: input: fix assignment of .value

commit 39b3c3a5 upstream.

The value field is actually an array of .maxfield. We should assign the
correct number to the correct usage.

Not that we never encounter a device that requires this ATM, but better
have the proper code path.

Fixes: 2dc702c9 ("HID: input: use the Resolution Multiplier for
       high-resolution scrolling")
Cc: stable@vger.kernel.org  # v5.0+
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/hid/hid-input.c

@@ -1595,7 +1595,7 @@ static bool __hidinput_change_resolution_multipliers(struct hid_device *hid,
 			if (usage->hid != HID_GD_RESOLUTION_MULTIPLIER)
 				continue;
 
-			*report->field[i]->value = value;
+			report->field[i]->value[j] = value;
 			update_needed = true;
 		}
 	}