From f60bde9edd9dd8670011b435e358af0513665ade Mon Sep 17 00:00:00 2001
From: Lorenz Meier <lm@inf.ethz.ch>
Date: Mon, 12 Dec 2016 09:07:15 +0100
Subject: [PATCH] Protect variables correctly during expansion

---
 ROMFS/px4fmu_common/init.d/rc.interface | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ROMFS/px4fmu_common/init.d/rc.interface b/ROMFS/px4fmu_common/init.d/rc.interface
index c5d499a3e8..4f1a223ffc 100644
--- a/ROMFS/px4fmu_common/init.d/rc.interface
+++ b/ROMFS/px4fmu_common/init.d/rc.interface
@@ -214,7 +214,7 @@ then
 		#
 		if [ $PWM_AUX_DISARMED != none -a $PWM_ACHDIS != none ]
 		then
-			pwm disarmed -c $PWM_ACHDIS -p $PWM_AUX_DISARMED -d $OUTPUT_AUX_DEV
+			pwm disarmed -c ${PWM_ACHDIS} -p ${PWM_AUX_DISARMED} -d ${OUTPUT_AUX_DEV}
 		fi
 
 		if [ $FAILSAFE_AUX != none ]