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@xxxxxxxxxx>
---
drivers/bluetooth/hci_ldisc.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/bluetooth/hci_ldisc.c b/drivers/bluetooth/hci_ldisc.c
index a746627e784e..d02f6d029093 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 +299,11 @@ 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);
+ return;
+ }
+
if (enable) {
/* Disable hardware flow control */
ktermios = tty->termios;
--
2.14.2
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