initscripts: avoid mounting /sys if it is already mounted

(From OE-Core rev: fdb3d74458cd36a0fe53ee097394acc37d658ce9)

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-core/initscripts/initscripts-1.0/sysfs.sh

@@ -14,6 +14,6 @@ if [ -e /proc ] && ! [ -e /proc/mounts ]; then
   mount -t proc proc /proc
 fi
 
-if [ -e /sys ] && grep -q sysfs /proc/filesystems; then
-  mount sysfs /sys -t sysfs
+if [ -e /sys ] && grep -q sysfs /proc/filesystems && ! [ -e /sys/class ]; then
+  mount -t sysfs sysfs /sys
 fi

meta/recipes-core/initscripts/initscripts_1.0.bb

@@ -3,7 +3,7 @@ DESCRIPTION = "Initscripts provide the basic system startup initialization scrip
 SECTION = "base"
 LICENSE = "GPLv2"
 LIC_FILES_CHKSUM = "file://COPYING;md5=751419260aa954499f7abaabaa882bbe"
-PR = "r127"
+PR = "r128"
 
 INHIBIT_DEFAULT_DEPS = "1"