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sysvinit-inittab: start_getty: consider whitespaces in tty driver name

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Unbreak serial console when driver name contains spaces (PXA serial).

Fix commit ac0e954
"start_getty: Over added SERIAL_CONSOLE cause error in userspace log"

(From OE-Core rev: 8b98302c30efb7073f61dc2a166f7414f050ef65)

Signed-off-by: Andrea Adami <andrea.adami@gmail.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Andrea Adami
2017-09-16 01:35:49 +02:00
committed by Richard Purdie
parent cf166da446
commit fbefc32988
1 changed files with 12 additions and 4 deletions
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meta/recipes-core/sysvinit/sysvinit-inittab/start_getty
+12 -4
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@@ -8,21 +8,26 @@
####################################################################################
# Get active serial filename.
active_serial=$(grep "serial" /proc/tty/drivers | grep -oh "^\s*\S*")
active_serial=$(grep "serial" /proc/tty/drivers | cut -d/ -f1 | sed "s/ *$//")
# Re-phrase input parameter from ttyS target index (ttyS1, ttyS2, ttyAMA0, etc).
runtime_tty=$(echo $2 | grep -oh '[0-9]')
# Backup $IFS.
DEFAULT_IFS=$IFS
# Customize Internal Field Separator.
IFS="$(printf '\n\t')"
for line in $active_serial; do
# File is availability, file content current active serial target index.
if [ -e /proc/tty/driver/$line ]
if [ -e "/proc/tty/driver/$line" ]
then
# File content a lot of unknown serial. We use -v to remove all unmatch and get left off.
# Tail use to avoid 1st line included into the filter because 1st line is file description.
activetty=$(grep -v "unknown" /proc/tty/driver/$line | tail -n +2 | grep -oh "^\s*\S*[0-9]")
activetty=$(grep -v "unknown" "/proc/tty/driver/$line" | tail -n +2 | grep -oh "^\s*\S*[0-9]")
for active in $activetty; do
# Check if both index is match then proceed to enable the serial console.
if [ $active -eq $runtime_tty ]
if [ $active -eq $runtime_tty ]
then
if [ -c /dev/$2 ]
then
@@ -33,3 +38,6 @@ for line in $active_serial; do
done
fi
done
# Restore $IFS.
IFS=$DEFAULT_IFS