Removing of bluetooth kernel module

src/freedombone-utils-setup

@@ -151,26 +151,41 @@ function proc_filesystem_settings {
 }
 
 function remove_bluetooth {
-    rmmod -f bnep
-    rmmod -f bluetooth
+    bluetooth_changed=
+    bnep_exists=$(lsmod | grep bnep)
+    if [[ "$bnep_exists" == "bnep"* ]]; then
+        rmmod -f bnep
+        bluetooth_changed=1
+    fi
+    bluetooth_exists=$(lsmod | grep bluetooth)
+    if [[ "$bluetooth_exists" == "bluetooth"* ]]; then
+        rmmod -f bluetooth
+        bluetooth_changed=1
+    fi
     if [ -f /etc/default/bluetooth ]; then
         if grep -q "BLUETOOTH_ENABLED=" /etc/default/bluetooth; then
             sed -i 's|BLUETOOTH_ENABLED=.*|BLUETOOTH_ENABLED=0|g' /etc/default/bluetooth
         else
             echo "BLUETOOTH_ENABLED=0" >> /etc/default/bluetooth
         fi
+        bluetooth_changed=1
     fi
     if ! grep -q 'blacklist bnep' /etc/modprobe.d/bluetooth.conf; then
         echo 'blacklist bnep' >> /etc/modprobe.d/bluetooth.conf
+        bluetooth_changed=1
     fi
     if ! grep -q 'blacklist btusb' /etc/modprobe.d/bluetooth.conf; then
         echo 'blacklist btusb' >> /etc/modprobe.d/bluetooth.conf
+        bluetooth_changed=1
     fi
     if ! grep -q 'blacklist bluetooth' /etc/modprobe.d/bluetooth.conf; then
         echo 'blacklist bluetooth' >> /etc/modprobe.d/bluetooth.conf
+        bluetooth_changed=1
+    fi
+    if [ $bluetooth_changed ]; then
+        update-initramfs -u -k `uname -r` -v
+        update-rc.d bluetooth remove
     fi
-    update-initramfs -u -k `uname -r` -v
-    update-rc.d bluetooth remove
 }
 
 function running_as_root {