[OE-core] [PATCH] Remove ttyS* from /etc/inittab that are not present

[Matthew McClintock]

This will prevent error message that pop up when the serial
port is not present
---
This seems quite hacky to me, but we have an issue where if we remove
a serial port from the device tree the serial port won't work.

It seems link it's still in /dev/ttySN but it's not configured properly.
I looked for udev rules and items in /proc and /sys to try to use but
I did not see anything...

Is there a better approach than this?

 .../sysvinit/sysvinit-inittab_2.88dsf.bb           |   19 ++++++++++++++++++-
 1 files changed, 18 insertions(+), 1 deletions(-)

diff --git a/meta/recipes-core/sysvinit/sysvinit-inittab_2.88dsf.bb b/meta/recipes-core/sysvinit/sysvinit-inittab_2.88dsf.bb
index 3a716d7..3031442 100644
--- a/meta/recipes-core/sysvinit/sysvinit-inittab_2.88dsf.bb
+++ b/meta/recipes-core/sysvinit/sysvinit-inittab_2.88dsf.bb
@@ -2,7 +2,7 @@ DESCRIPTION = "Inittab for sysvinit"
 LICENSE = "GPLv2"
 LIC_FILES_CHKSUM = "file://COPYING;md5=751419260aa954499f7abaabaa882bbe"
 
-PR = "r6"
+PR = "r7"
 
 SRC_URI = "file://COPYING \
            file://inittab"
@@ -56,6 +56,23 @@ EOF
     fi
 }
 
+pkg_postinst_${PN} () {
+# run this on the target
+if [ "x$D" == "x" ]; then
+	tmp="${SERIAL_CONSOLES}"
+	for i in $tmp
+	do
+		j=`echo ${i} | sed s/^.*\;//g`
+		if [ -z "`dmesg | grep ${j}`" ]; then
+			sed -i /^.*${j}$/d /etc/inittab
+		fi
+	done
+	kill -HUP 1
+fi
+
+exit 1
+}
+
 # USE_VT and SERIAL_CONSOLE are generally defined by the MACHINE .conf.
 # Set PACKAGE_ARCH appropriately.
 PACKAGE_ARCH = "${MACHINE_ARCH}"
-- 
1.7.6.1