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authorHans de Goede <hdegoede@redhat.com>2017-10-04 20:43:35 +0200
committerMarcel Holtmann <marcel@holtmann.org>2017-10-06 20:35:47 +0200
commit7841d554809b518a22349e7e39b6b63f8a48d0fb (patch)
tree6d80901eff8d18023150c01bd564990d8a1f7c3e /drivers/bluetooth
parentc0153b0b901a16663ff91504fea25fb51d57cc29 (diff)
downloadlinux-7841d554809b518a22349e7e39b6b63f8a48d0fb.tar.bz2
Bluetooth: hci_uart_set_flow_control: Fix NULL deref when using serdev
Fix a NULL pointer deref (hu->tty) when calling hci_uart_set_flow_control on hci_uart-s using serdev. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'drivers/bluetooth')
-rw-r--r--drivers/bluetooth/hci_ldisc.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/bluetooth/hci_ldisc.c b/drivers/bluetooth/hci_ldisc.c
index a746627e784e..eec95019f15c 100644
--- a/drivers/bluetooth/hci_ldisc.c
+++ b/drivers/bluetooth/hci_ldisc.c
@@ -41,6 +41,7 @@
#include <linux/ioctl.h>
#include <linux/skbuff.h>
#include <linux/firmware.h>
+#include <linux/serdev.h>
#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>
@@ -298,6 +299,12 @@ void hci_uart_set_flow_control(struct hci_uart *hu, bool enable)
unsigned int set = 0;
unsigned int clear = 0;
+ if (hu->serdev) {
+ serdev_device_set_flow_control(hu->serdev, !enable);
+ serdev_device_set_rts(hu->serdev, !enable);
+ return;
+ }
+
if (enable) {
/* Disable hardware flow control */
ktermios = tty->termios;