Checking for mPanService before changing OR checking tethering state, otherwise it will lead to application crash while checking isTetheringOn OR changing tethering state. Change-Id: I00844c03cdb8616118c1d50d7d31c75e51f0ef9b
Checking for mPanService before changing OR checking tethering state, otherwise it will lead to application crash while checking isTetheringOn OR changing tethering state. Change-Id: I00844c03cdb8616118c1d50d7d31c75e51f0ef9b