features/index: Fix race in this->private initialization

RCA:
In index_worker function at the time of assigning priv from
this->private, this->private may not be set in init() function
of index xlator.

Fix:
Set this->private before creating the thread.

Additional Changes:
Added code to handle error path completely.

Test cases:
Attached the process to gdb and simulated failures.
executed fini in gdb using call fini(this) after init
was successful.

Change-Id: I1874a30d009a35352173b827574cf83daf431453
BUG: 843071
Signed-off-by: Pranith Kumar K <pranithk@gluster.com>
Reviewed-on: http://review.gluster.com/3728
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>

0 files changed, 0 insertions, 0 deletions