Make sure ircode does not contain random values if the call to
cxusb_ctrl_msg fails for some reason.
Reported-by: syzbot+98730b985cad4931a552@xxxxxxxxxxxxxxxxxxxxxxxxx
Signed-off-by: Valentin Vidic <vvidic@xxxxxxxxxxxxxxxxxxxxxx>
---
drivers/media/usb/dvb-usb/cxusb.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/media/usb/dvb-usb/cxusb.c b/drivers/media/usb/dvb-usb/cxusb.c
index f02fa0a67aa4..afcd88dd96c0 100644
--- a/drivers/media/usb/dvb-usb/cxusb.c
+++ b/drivers/media/usb/dvb-usb/cxusb.c
@@ -519,7 +519,7 @@ static int cxusb_d680_dmb_streaming_ctrl(struct dvb_usb_adapter *adap,
static int cxusb_rc_query(struct dvb_usb_device *d)
{
- u8 ircode[4];
+ u8 ircode[4] = { 0 };
cxusb_ctrl_msg(d, CMD_GET_IR_CODE, NULL, 0, ircode, 4);
@@ -531,7 +531,7 @@ static int cxusb_rc_query(struct dvb_usb_device *d)
static int cxusb_bluebird2_rc_query(struct dvb_usb_device *d)
{
- u8 ircode[4];
+ u8 ircode[4] = { 0 };
struct i2c_msg msg = {
.addr = 0x6b,
.flags = I2C_M_RD,
@@ -550,7 +550,7 @@ static int cxusb_bluebird2_rc_query(struct dvb_usb_device *d)
static int cxusb_d680_dmb_rc_query(struct dvb_usb_device *d)
{
- u8 ircode[2];
+ u8 ircode[2] = { 0 };
if (cxusb_ctrl_msg(d, 0x10, NULL, 0, ircode, 2) < 0)
return 0;
@@ -989,7 +989,7 @@ static int cxusb_dee1601_frontend_attach(struct dvb_usb_adapter *adap)
static int cxusb_dualdig4_frontend_attach(struct dvb_usb_adapter *adap)
{
- u8 ircode[4];
+ u8 ircode[4] = { 0 };
int i;
struct i2c_msg msg = {
.addr = 0x6b,
--
2.20.1
