Return-Path: From: Amitkumar Karwar To: CC: , Ganapathi Bhat , Amitkumar Karwar Subject: [PATCH v10 2/3] Bluetooth: hci_uart: check if hdev is present before using it Date: Thu, 5 May 2016 08:08:21 -0700 Message-ID: <1462460902-25439-2-git-send-email-akarwar@marvell.com> In-Reply-To: <1462460902-25439-1-git-send-email-akarwar@marvell.com> References: <1462460902-25439-1-git-send-email-akarwar@marvell.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: From: Ganapathi Bhat The hdev struct might not have initialized in protocol receive handler. This patch adds necessary checks. Signed-off-by: Ganapathi Bhat Signed-off-by: Amitkumar Karwar --- drivers/bluetooth/hci_ldisc.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/bluetooth/hci_ldisc.c b/drivers/bluetooth/hci_ldisc.c index b4ee682..047e786 100644 --- a/drivers/bluetooth/hci_ldisc.c +++ b/drivers/bluetooth/hci_ldisc.c @@ -154,7 +154,9 @@ restart: set_bit(TTY_DO_WRITE_WAKEUP, &tty->flags); len = tty->ops->write(tty, skb->data, skb->len); - hdev->stat.byte_tx += len; + + if (hdev) + hdev->stat.byte_tx += len; skb_pull(skb, len); if (skb->len) { @@ -349,7 +351,7 @@ void hci_uart_set_baudrate(struct hci_uart *hu, unsigned int speed) /* tty_set_termios() return not checked as it is always 0 */ tty_set_termios(tty, &ktermios); - BT_DBG("%s: New tty speeds: %d/%d", hu->hdev->name, + BT_DBG("%s: New tty speeds: %d/%d", hu->hdev ? hu->hdev->name : "", tty->termios.c_ispeed, tty->termios.c_ospeed); } -- 1.8.1.4