From 0ffcb6e4d342397aedfb86f784ac86613b51fc22 Mon Sep 17 00:00:00 2001
From: Roopa Prabhu <roopa@cumulusnetworks.com>
Date: Thu, 10 Sep 2015 10:36:13 -0700
Subject: [PATCH] check for udev files before acting on them

---
 debian/ifupdown2.postrm | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/debian/ifupdown2.postrm b/debian/ifupdown2.postrm
index b031c4c..e7bb6a2 100644
--- a/debian/ifupdown2.postrm
+++ b/debian/ifupdown2.postrm
@@ -20,10 +20,15 @@ set -e
 
 process_udev()
 {
-    udevlink=$(readlink /etc/udev/rules.d/80-networking.rules 2>/dev/null || true)
-    [ -n "$udevlink" -a "$udevlink" = "/dev/null" ] && rm -f /etc/udev/rules.d/80-networking.rules
-    udevlink=$(readlink /etc/udev/rules.d/60-bridge-network-interface.rules 2>/dev/null || true)
-    [ -n "$udevlink" -a "$udevlink" = "/dev/null" ] && rm -f /etc/udev/rules.d/60-bridge-network-interface.rules
+    if [ -e /etc/udev/rules.d/80-networking.rules ]; then
+        udevlink=$(readlink /etc/udev/rules.d/80-networking.rules 2>/dev/null || true)
+        [ -n "$udevlink" -a "$udevlink" = "/dev/null" ] && rm -f /etc/udev/rules.d/80-networking.rules
+    fi
+
+    if  [ -e /etc/udev/rules.d/60-bridge-network-interface.rules ]; then
+        udevlink=$(readlink /etc/udev/rules.d/60-bridge-network-interface.rules 2>/dev/null || true)
+        [ -n "$udevlink" -a "$udevlink" = "/dev/null" ] && rm -f /etc/udev/rules.d/60-bridge-network-interface.rules
+    fi
 }
 
 postrm_remove()