V4L/DVB (5369): Fixed 1 byte too short buffer in tda827x.c

- The i2c data buffer in tda827xa_set_params was 1 byte too short
- saa7134-dvb now gives an error mesage if tda827x could not be attached
- coding style fix in tda1004x.c
Signed-off-by: NHartmut Hackmann <hartmut.hackmann@t-online.de>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

drivers/media/dvb/frontends/tda1004x.c

@@ -695,7 +695,8 @@ static int tda1004x_set_fe(struct dvb_frontend* fe,
 	// set frequency
 	if (fe->ops.tuner_ops.set_params) {
 		fe->ops.tuner_ops.set_params(fe, fe_params);
-		if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 0);
+		if (fe->ops.i2c_gate_ctrl)
+			fe->ops.i2c_gate_ctrl(fe, 0);
 	}
 
 	// Hardcoded to use auto as much as possible on the TDA10045 as it

drivers/media/dvb/frontends/tda827x.c

@@ -214,7 +214,7 @@ static int tda827xa_set_params(struct dvb_frontend *fe,
 			       struct dvb_frontend_parameters *params)
 {
 	struct tda827x_priv *priv = fe->tuner_priv;
-	u8 buf[10];
+	u8 buf[11];
 
 	struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,
 			       .buf = buf, .len = sizeof(buf) };

drivers/media/video/saa7134/saa7134-dvb.c

@@ -692,8 +692,11 @@ static void configure_tda827x_fe(struct saa7134_dev *dev, struct tda1004x_config
 	if (dev->dvb.frontend) {
 		if (tda_conf->i2c_gate)
 			dev->dvb.frontend->ops.i2c_gate_ctrl = tda8290_i2c_gate_ctrl;
-		dvb_attach(tda827x_attach,dev->dvb.frontend,
-			   tda_conf->tuner_address,&dev->i2c_adap,&tda827x_cfg);
+		if (dvb_attach(tda827x_attach, dev->dvb.frontend, tda_conf->tuner_address,
+						&dev->i2c_adap,&tda827x_cfg) == NULL) {
+			printk ("saa7134/dvb: no tda827x tuner found at addr: %02x\n",
+				tda_conf->tuner_address);
+		}
 	}
 }
 
@@ -1038,9 +1041,12 @@ static int dvb_init(struct saa7134_dev *dev)
 					       &ads_tech_duo_config,
 					       &dev->i2c_adap);
 		if (dev->dvb.frontend) {
-			dvb_attach(tda827x_attach,dev->dvb.frontend,
+			if (dvb_attach(tda827x_attach,dev->dvb.frontend,
 				   ads_tech_duo_config.tuner_address,
-				   &dev->i2c_adap,&ads_duo_cfg);
+				   &dev->i2c_adap,&ads_duo_cfg) == NULL) {
+				printk ("saa7134/dvb: no tda827x tuner found at addr: %02x\n",
+					ads_tech_duo_config.tuner_address);
+			}
 		}
 		break;
 	case SAA7134_BOARD_TEVION_DVBT_220RF: