From: Hans Verkuil <hans.verkuil@cisco.com>
Date: Mon, 8 Apr 2013 19:25:04 +0000 (-0300)
Subject: [media] em28xx: fix kernel oops when watching digital TV
X-Git-Tag: firefly_0821_release~3680^2~618^2~40
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=3de09fbbfaa521e68675bd30cfece252c4856600;p=firefly-linux-kernel-4.4.55.git
[media] em28xx: fix kernel oops when watching digital TV
dvb->adapter.priv should also be set to the i2c bus since that's what
em28xx_tuner_callback expects.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Tested-by: Frank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
diff --git a/drivers/media/usb/em28xx/em28xx-dvb.c b/drivers/media/usb/em28xx/em28xx-dvb.c
index 42a6a2696224..1f1f56ff6294 100644
--- a/drivers/media/usb/em28xx/em28xx-dvb.c
+++ b/drivers/media/usb/em28xx/em28xx-dvb.c
@@ -178,7 +178,8 @@ static inline int em28xx_dvb_urb_data_copy(struct em28xx *dev, struct urb *urb)
static int em28xx_start_streaming(struct em28xx_dvb *dvb)
{
int rc;
- struct em28xx *dev = dvb->adapter.priv;
+ struct em28xx_i2c_bus *i2c_bus = dvb->adapter.priv;
+ struct em28xx *dev = i2c_bus->dev;
int dvb_max_packet_size, packet_multiplier, dvb_alt;
if (dev->dvb_xfer_bulk) {
@@ -217,7 +218,8 @@ static int em28xx_start_streaming(struct em28xx_dvb *dvb)
static int em28xx_stop_streaming(struct em28xx_dvb *dvb)
{
- struct em28xx *dev = dvb->adapter.priv;
+ struct em28xx_i2c_bus *i2c_bus = dvb->adapter.priv;
+ struct em28xx *dev = i2c_bus->dev;
em28xx_stop_urbs(dev);
@@ -839,7 +841,7 @@ static int em28xx_register_dvb(struct em28xx_dvb *dvb, struct module *module,
if (dvb->fe[1])
dvb->fe[1]->ops.ts_bus_ctrl = em28xx_dvb_bus_ctrl;
- dvb->adapter.priv = dev;
+ dvb->adapter.priv = &dev->i2c_bus[dev->def_i2c_bus];
/* register frontend */
result = dvb_register_frontend(&dvb->adapter, dvb->fe[0]);