[media] dvb_frontend: pass the props cache to get_frontend() as arg

Instead of using the DTV properties cache directly, pass the get
frontend data as an argument. For now, everything should remain
the same, but the next patch will prevent get_frontend to
affect the global cache.

This is needed because several drivers don't care enough to only
change the properties if locked. Due to that, calling
G_PROPERTY before locking on those drivers will make them to
never lock. Ok, those drivers are crap and should never be
merged like that, but the core should not rely that the drivers
would be doing the right thing.

Reviewed-by: Michael Ira Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/media/dvb-frontends/dib3000mc.c b/drivers/media/dvb-frontends/dib3000mc.c
index ac90ed3..da0f1dc 100644
--- a/drivers/media/dvb-frontends/dib3000mc.c
+++ b/drivers/media/dvb-frontends/dib3000mc.c
@@ -636,9 +636,9 @@ struct i2c_adapter * dib3000mc_get_tuner_i2c_master(struct dvb_frontend *demod,
 
 EXPORT_SYMBOL(dib3000mc_get_tuner_i2c_master);
 
-static int dib3000mc_get_frontend(struct dvb_frontend* fe)
+static int dib3000mc_get_frontend(struct dvb_frontend* fe,
+				  struct dtv_frontend_properties *fep)
 {
-	struct dtv_frontend_properties *fep = &fe->dtv_property_cache;
 	struct dib3000mc_state *state = fe->demodulator_priv;
 	u16 tps = dib3000mc_read_word(state,458);
 
@@ -726,7 +726,7 @@ static int dib3000mc_set_frontend(struct dvb_frontend *fe)
 		if (found == 0 || found == 1)
 			return 0; // no channel found
 
-		dib3000mc_get_frontend(fe);
+		dib3000mc_get_frontend(fe, fep);
 	}
 
 	ret = dib3000mc_tune(fe);