#1470 log: Mutex is not always LOCKED when _hdl functions return

[Vu Minh Nguyen]

In every _hdl functions @ lgs_filehdl.c, they are required to UNLOCK Mutex inside the _hdl functions and LOCK Mutex when _hdl functions return.

But in the functions path_is_writeable_dir_hdl() and write_log_record_hdl(), the above condition is not always true in some cases.

Following case is an example:

1. Create a folder with no allowed permissions.

   me@:~/opensaf/opensaf-staging/tools/cluster_sim_uml/repl-opensaf$ ll
   d--------- 2 osboxes osboxes 4096 Aug 31 07:51 denied/

2. Change logRootDirectory to above folder:

   immcfg -a logRootDirectory="/repl_opensaf/denied" logConfig=1,safApp=safLogService
   error - saImmOmCcbApply FAILED: SA_AIS_ERR_FAILED_OPERATION (21)
   OI reports: pathName: /repl_opensaf/denied is NOT accepted

[Vu Minh Nguyen]

Refer to [#2452]