openvswitch-switch.init: Redirect error to /dev/null.

The latest Open vSwitch kernel module from Upstream linux does not
list "version". During debian package installation, we would see
a non-harmful error in the log. This patch suppresses it.

Signed-off-by: Gurucharan Shetty <guru@ovn.org>
Acked-by: Ben Pfaff <blp@ovn.org>

diff --git a/debian/openvswitch-switch.init b/debian/openvswitch-switch.init
index aece780..a045f3b 100755 (executable)
--- a/debian/openvswitch-switch.init
+++ b/debian/openvswitch-switch.init
@@ -87,11 +87,15 @@ restart () {
         depmod -a
 
         if [ -e /sys/module/openvswitch ]; then
-            LOADED_SRCVERSION=`cat /sys/module/openvswitch/srcversion`
-            LOADED_VERSION=`cat /sys/module/openvswitch/version`
+            LOADED_SRCVERSION=`cat /sys/module/openvswitch/srcversion \
+                               2>/dev/null`
+            LOADED_VERSION=`cat /sys/module/openvswitch/version \
+                            2>/dev/null`
         elif [ -e /sys/module/openvswitch_mod ]; then
-            LOADED_SRCVERSION=`cat /sys/module/openvswitch_mod/srcversion`
-            LOADED_VERSION=`cat /sys/module/openvswitch_mod/version`
+            LOADED_SRCVERSION=`cat /sys/module/openvswitch_mod/srcversion \
+                               2>/dev/null`
+            LOADED_VERSION=`cat /sys/module/openvswitch_mod/version \
+                            2>/dev/null`
         fi
         SRCVERSION=`modinfo -F srcversion openvswitch 2>/dev/null`
         VERSION=`modinfo -F version openvswitch 2>/dev/null`