Bluetooth: Null pointer handle after ssr_cleanup

During stability test, null pointer has not been handled
correctly after ssr_cleanup() set the pointer to NULL.
Add null pointer check routine.

Change-Id: I7196b4929c7e760ee9d92f78b5779887a6e84e35
CRs-Fixed: 699001
1 file changed
tree: 82d6dacf778d1ecc8c3f338da3a1444c01f0ed45
  1. libbt-vendor/
  2. Android.mk
  3. CleanSpec.mk