Detect pthread_create error
Detect pthread_create error

pthread_create can fail but it was ignored.

Fail start in such case.

Signed-off-by: Kevin Rocard <bd9a896220d78c7807307c046053ff427b594938@intel.com>

soaresm/parameter-framework,dawagner/parameter-framework,sdnnfv/parameter-framework,wzairix/parameter-framework,krocard/parameter-framework,soaresm/parameter-framework,sdnnfv/parameter-framework,01org/parameter-framework,sdnnfv/parameter-framework,mgaio/parameter-framework,01org/parameter-framework,krocard/parameter-framework,mgaio/parameter-framework,dawagner/parameter-framework,wzairix/parameter-framework,miguelgaio/parameter-framework,mgaio/parameter-framework,soaresm/parameter-framework,miguelgaio/parameter-framework,miguelgaio/parameter-framework,clero/parameter-framework,krocard/parameter-framework,wzairix/parameter-framework,01org/parameter-framework,dawagner/parameter-framework,clero/parameter-framework,clero/parameter-framework