From 0a87330beff491a9ca359814d32cd4e899203b7c Mon Sep 17 00:00:00 2001
From: "Ycarus (Yannick Chabanois)" <ycarus@zugaina.org>
Date: Sat, 24 Apr 2021 08:57:05 +0200
Subject: [PATCH] Check if interface exist in sysfs for ModemManager

---
 modemmanager/files/25-modemmanager-net | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/modemmanager/files/25-modemmanager-net b/modemmanager/files/25-modemmanager-net
index e87231e31..aad9852df 100644
--- a/modemmanager/files/25-modemmanager-net
+++ b/modemmanager/files/25-modemmanager-net
@@ -8,6 +8,9 @@
 # We require a interface name
 [ -n "${INTERFACE}" ] || exit
 
+[ -n "$(echo ${INTERFACE} | grep -i sqm)" ] && exit
+[ ! -f /sys${DEVPATH} ] && exit
+
 # Always make sure the rundir exists
 mkdir -m 0755 -p "${MODEMMANAGER_RUNDIR}"