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>
diff --git a/drivers/media/video/tuner-core.c b/drivers/media/video/tuner-core.c
index 4ca686f..5a75788 100644
--- a/drivers/media/video/tuner-core.c
+++ b/drivers/media/video/tuner-core.c
@@ -448,10 +448,10 @@
xc5000_cfg.i2c_address = t->i2c->addr;
xc5000_cfg.if_khz = 5380;
- xc5000_cfg.priv = c->adapter->algo_data;
xc5000_cfg.tuner_callback = t->tuner_callback;
if (!dvb_attach(xc5000_attach,
- &t->fe, t->i2c->adapter, &xc5000_cfg))
+ &t->fe, t->i2c->adapter, &xc5000_cfg,
+ c->adapter->algo_data))
goto attach_failed;
xc_tuner_ops = &t->fe.ops.tuner_ops;