From d7e1061c63820323dcb68960baf37875ec216fc2 Mon Sep 17 00:00:00 2001 From: Kevin O'Connor Date: Sun, 7 Apr 2019 20:43:23 -0400 Subject: [PATCH] bus: Don't reserve any pins if BUS_PINS_x is not defined Signed-off-by: Kevin O'Connor --- klippy/extras/bus.py | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/klippy/extras/bus.py b/klippy/extras/bus.py index b8deb22b..8bd4bc9f 100644 --- a/klippy/extras/bus.py +++ b/klippy/extras/bus.py @@ -25,9 +25,10 @@ def resolve_bus_name(mcu, param, bus): raise ppins.error("Unknown %s '%s'" % (param, bus)) # Check for reserved bus pins constants = mcu.get_constants() - reserve_pins = constants.get('BUS_PINS_%s' % (bus,), '') - for pin in reserve_pins.split(','): - ppins.reserve_pin(mcu_name, pin, bus) + reserve_pins = constants.get('BUS_PINS_%s' % (bus,), None) + if reserve_pins is not None: + for pin in reserve_pins.split(','): + ppins.reserve_pin(mcu_name, pin, bus) return bus