tree fb1fa2e403c8fc17835924f52e230a09d5040946
parent 65f7070cb3f67eba009e68413187727f508623e1
author Subrata Modak <subratamodak@subratamodak.linux.ibm.com> 1278179021 +0530
committer Subrata Modak <subratamodak@subratamodak.linux.ibm.com> 1278179021 +0530

semctl01 and shmctl01 will hang during uClinux test: ltp test case shmctl01 and semctl01 can not execute. When press ctrl and c, it can not exist.
--
root:/> shmctl01

^Cshmctl01    0  INFO  :  received unexpected signal 2
^Cshmctl01    0  INFO  :  received unexpected signal 2
--
The reason is the child will unlink the pipe if pipename isn't NULL，which may make the parent waitting forever. Signed-off-by: Bob Liu <lliubbo@gmail.com>.