Quoting Balakrishna Godavarthi (2018-08-23 04:29:35) > This patch enables power off support for hci down and power on support > for hci up. As wcn3990 power sources are ignited by regulators, we will > turn off them during hci down, i.e. an complete power off of wcn3990. > So while hci up, we will call vendor specific open/close and setup which > will turn on the regulators, requests BT chip version and download the > firmware. > > Signed-off-by: Balakrishna Godavarthi <bgodavar@xxxxxxxxxxxxxx> > --- > drivers/bluetooth/hci_qca.c | 34 ++++++++++++++++++++++++++++++++++ > 1 file changed, 34 insertions(+) > > diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c > index e182f6019f68..98d33c6b8909 100644 > --- a/drivers/bluetooth/hci_qca.c > +++ b/drivers/bluetooth/hci_qca.c > @@ -595,6 +595,9 @@ static int qca_close(struct hci_uart *hu) > struct qca_serdev *qcadev; > struct qca_data *qca = hu->priv; > > + if (!qca) > + return 0; Does this happen? If it does it seems like a failure in the caller to know what's going on.
