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lantiq: Synchronize access to the DSL command pipe 

Whenever two processes were executing different commands at the same
time then one of the commands sometimes got the response of the other
command.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>

SVN-Revision: 47213
owl
John Crispin 2015-10-19 10:08:56 +00:00
parent 21e1b4163f
commit e1d585d99f
1 changed files with 2 additions and 0 deletions
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2
target/linux/lantiq/base-files/lib/functions/lantiq_dsl.sh
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@ -12,8 +12,10 @@ fi
# #
dsl_cmd() { dsl_cmd() {
killall -0 ${XDSL_CTRL} && ( killall -0 ${XDSL_CTRL} && (
lock /var/lock/dsl_pipe
echo "$@" > /tmp/pipe/dsl_cpe0_cmd echo "$@" > /tmp/pipe/dsl_cpe0_cmd
cat /tmp/pipe/dsl_cpe0_ack cat /tmp/pipe/dsl_cpe0_ack
lock -u /var/lock/dsl_pipe
) )
} }
dsl_val() { dsl_val() {