V4L/DVB (7893): xc5000: bug-fix: allow multiple devices in a single system

The current code passes a context pointer in the xc5000_config struct.
This context pointer is used in the tuner_callback function, used to
reset the device after firmware download.

The xc5000_config struct is a static structure, whose .priv member was
being assigned before calling xc5000_attach().  If there are more than
one of the same device type installed on a single system, the last one
to assign xc5000_config.priv will "win", and all others will cease to
function properly.

This patch passes the context pointer in xc5000_attach() rather that
storing it within the static struct xc5000_config.

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

1 files changed, 2 insertions, 4 deletions

diff --git a/drivers/media/video/cx23885/cx23885-dvb.c b/drivers/media/video/cx23885/cx23885-dvb.c
index 47e3f9e035f9..022aa391937a 100644
--- a/drivers/media/video/cx23885/cx23885-dvb.c
+++ b/drivers/media/video/cx23885/cx23885-dvb.c
@@ -384,12 +384,10 @@ static int dvb_register(struct cx23885_tsport *port)
                 port->dvb.frontend = dvb_attach(s5h1409_attach,
                                                 &hauppauge_hvr1500q_config,
                                                 &dev->i2c_bus[0].i2c_adap);
-                if (port->dvb.frontend != NULL) {
-                        hauppauge_hvr1500q_tunerconfig.priv = i2c_bus;
+                if (port->dvb.frontend != NULL)
                         dvb_attach(xc5000_attach, port->dvb.frontend,
                                 &i2c_bus->i2c_adap,
-                                &hauppauge_hvr1500q_tunerconfig);
-                }
+                                &hauppauge_hvr1500q_tunerconfig, i2c_bus);
                 break;
         case CX23885_BOARD_HAUPPAUGE_HVR1500:
                 i2c_bus = &dev->i2c_bus[1];