init: device: fix memory leak issue

Fix some memory leak and null pointer issues reported by KW.

Change-Id: I61df734380498b68cdb4c3f66dcf5771e9e191eb
Signed-off-by: Hong-Mei Li <a21834@motorola.com>
Reviewed-on: http://gerrit.pcs.mot.com/549753
SLT-Approved: Slta Waiver <sltawvr@motorola.com>
Tested-by: Jira Key <jirakey@motorola.com>
Reviewed-by: Patrick Auchter <auchter@motorola.com>
Reviewed-by: Jeffrey Carlyle <jeff.carlyle@motorola.com>
Submit-Approved: Jira Key <jirakey@motorola.com>
(cherry picked from commit dab2f49656556281f8e8ac313c7023355f705489)