It is possible that during BT OFF operation the hcon could be released from a tasklet context while we are trying to send the l2cap disconnect req. Make sure that hcon is valid before dereferencing it during l2cap disconnect req. CRs-fixed: 383345 Change-Id: Icb12c62560013b5ebb047c1c5d4bfe04b3a793ef Signed-off-by: Sunny Kapdi <sunnyk@codeaurora.org>