Merge branch 'linus' into x86/irqtip-x86-irq-2008-06-16_09.27_Mon

1 files changed, 113 insertions, 55 deletions

diff --git a/drivers/media/common/tuners/tda18271-fe.c b/drivers/media/common/tuners/tda18271-fe.c
index b262100ae897..89c01fb1f859 100644
--- a/drivers/media/common/tuners/tda18271-fe.c
+++ b/drivers/media/common/tuners/tda18271-fe.c
@@ -51,6 +51,7 @@ static int tda18271_channel_configuration(struct dvb_frontend *fe,
 {
 	struct tda18271_priv *priv = fe->tuner_priv;
 	unsigned char *regs = priv->tda18271_regs;
+	int ret;
 	u32 N;
 
 	/* update TV broadcast parameters */
@@ -85,7 +86,9 @@ static int tda18271_channel_configuration(struct dvb_frontend *fe,
 	/* update rf top / if top */
 	regs[R_EB22]  = 0x00;
 	regs[R_EB22] |= map->rfagc_top;
-	tda18271_write_regs(fe, R_EB22, 1);
+	ret = tda18271_write_regs(fe, R_EB22, 1);
+	if (tda_fail(ret))
+		goto fail;
 
 	/* --------------------------------------------------------------- */
 
@@ -121,7 +124,9 @@ static int tda18271_channel_configuration(struct dvb_frontend *fe,
 	/* agc1 has priority on agc2 */
 	regs[R_EB1]  &= ~0x01;
 
-	tda18271_write_regs(fe, R_EB1, 1);
+	ret = tda18271_write_regs(fe, R_EB1, 1);
+	if (tda_fail(ret))
+		goto fail;
 
 	/* --------------------------------------------------------------- */
 
@@ -141,7 +146,9 @@ static int tda18271_channel_configuration(struct dvb_frontend *fe,
 		break;
 	}
 
-	tda18271_write_regs(fe, R_TM, 7);
+	ret = tda18271_write_regs(fe, R_TM, 7);
+	if (tda_fail(ret))
+		goto fail;
 
 	/* force charge pump source */
 	charge_pump_source(fe, 1);
@@ -158,9 +165,9 @@ static int tda18271_channel_configuration(struct dvb_frontend *fe,
 		regs[R_EP3] &= ~0x04;
 	else
 		regs[R_EP3] |= 0x04;
-	tda18271_write_regs(fe, R_EP3, 1);
-
-	return 0;
+	ret = tda18271_write_regs(fe, R_EP3, 1);
+fail:
+	return ret;
 }
 
 static int tda18271_read_thermometer(struct dvb_frontend *fe)
@@ -213,11 +220,13 @@ static int tda18271c2_rf_tracking_filters_correction(struct dvb_frontend *fe,
 	struct tda18271_priv *priv = fe->tuner_priv;
 	struct tda18271_rf_tracking_filter_cal *map = priv->rf_cal_state;
 	unsigned char *regs = priv->tda18271_regs;
-	int tm_current, rfcal_comp, approx, i;
+	int tm_current, rfcal_comp, approx, i, ret;
 	u8 dc_over_dt, rf_tab;
 
 	/* power up */
-	tda18271_set_standby_mode(fe, 0, 0, 0);
+	ret = tda18271_set_standby_mode(fe, 0, 0, 0);
+	if (tda_fail(ret))
+		goto fail;
 
 	/* read die current temperature */
 	tm_current = tda18271_read_thermometer(fe);
@@ -228,8 +237,8 @@ static int tda18271c2_rf_tracking_filters_correction(struct dvb_frontend *fe,
 	rf_tab = regs[R_EB14];
 
 	i = tda18271_lookup_rf_band(fe, &freq, NULL);
-	if (i < 0)
-		return -EINVAL;
+	if (tda_fail(i))
+		return i;
 
 	if ((0 == map[i].rf3) || (freq / 1000 < map[i].rf2)) {
 		approx = map[i].rf_a1 *
@@ -250,35 +259,42 @@ static int tda18271c2_rf_tracking_filters_correction(struct dvb_frontend *fe,
 	rfcal_comp = dc_over_dt * (tm_current - priv->tm_rfcal);
 
 	regs[R_EB14] = approx + rfcal_comp;
-	tda18271_write_regs(fe, R_EB14, 1);
-
-	return 0;
+	ret = tda18271_write_regs(fe, R_EB14, 1);
+fail:
+	return ret;
 }
 
 static int tda18271_por(struct dvb_frontend *fe)
 {
 	struct tda18271_priv *priv = fe->tuner_priv;
 	unsigned char *regs = priv->tda18271_regs;
+	int ret;
 
 	/* power up detector 1 */
 	regs[R_EB12] &= ~0x20;
-	tda18271_write_regs(fe, R_EB12, 1);
+	ret = tda18271_write_regs(fe, R_EB12, 1);
+	if (tda_fail(ret))
+		goto fail;
 
 	regs[R_EB18] &= ~0x80; /* turn agc1 loop on */
 	regs[R_EB18] &= ~0x03; /* set agc1_gain to  6 dB */
-	tda18271_write_regs(fe, R_EB18, 1);
+	ret = tda18271_write_regs(fe, R_EB18, 1);
+	if (tda_fail(ret))
+		goto fail;
 
 	regs[R_EB21] |= 0x03; /* set agc2_gain to -6 dB */
 
 	/* POR mode */
-	tda18271_set_standby_mode(fe, 1, 0, 0);
+	ret = tda18271_set_standby_mode(fe, 1, 0, 0);
+	if (tda_fail(ret))
+		goto fail;
 
 	/* disable 1.5 MHz low pass filter */
 	regs[R_EB23] &= ~0x04; /* forcelp_fc2_en = 0 */
 	regs[R_EB23] &= ~0x02; /* XXX: lp_fc[2] = 0 */
-	tda18271_write_regs(fe, R_EB21, 3);
-
-	return 0;
+	ret = tda18271_write_regs(fe, R_EB21, 3);
+fail:
+	return ret;
 }
 
 static int tda18271_calibrate_rf(struct dvb_frontend *fe, u32 freq)
@@ -389,7 +405,7 @@ static int tda18271_powerscan(struct dvb_frontend *fe,
 {
 	struct tda18271_priv *priv = fe->tuner_priv;
 	unsigned char *regs = priv->tda18271_regs;
-	int sgn, bcal, count, wait;
+	int sgn, bcal, count, wait, ret;
 	u8 cid_target;
 	u16 count_limit;
 	u32 freq;
@@ -421,7 +437,9 @@ static int tda18271_powerscan(struct dvb_frontend *fe,
 	tda18271_write_regs(fe, R_EP2, 1);
 
 	/* read power detection info, stored in EB10 */
-	tda18271_read_extended(fe);
+	ret = tda18271_read_extended(fe);
+	if (tda_fail(ret))
+		return ret;
 
 	/* algorithm initialization */
 	sgn = 1;
@@ -447,7 +465,9 @@ static int tda18271_powerscan(struct dvb_frontend *fe,
 		tda18271_write_regs(fe, R_EP2, 1);
 
 		/* read power detection info, stored in EB10 */
-		tda18271_read_extended(fe);
+		ret = tda18271_read_extended(fe);
+		if (tda_fail(ret))
+			return ret;
 
 		count += 200;
 
@@ -478,6 +498,7 @@ static int tda18271_powerscan_init(struct dvb_frontend *fe)
 {
 	struct tda18271_priv *priv = fe->tuner_priv;
 	unsigned char *regs = priv->tda18271_regs;
+	int ret;
 
 	/* set standard to digital */
 	regs[R_EP3]  &= ~0x1f; /* clear std bits */
@@ -489,10 +510,14 @@ static int tda18271_powerscan_init(struct dvb_frontend *fe)
 	/* update IF output level & IF notch frequency */
 	regs[R_EP4]  &= ~0x1c; /* clear if level bits */
 
-	tda18271_write_regs(fe, R_EP3, 2);
+	ret = tda18271_write_regs(fe, R_EP3, 2);
+	if (tda_fail(ret))
+		goto fail;
 
 	regs[R_EB18] &= ~0x03; /* set agc1_gain to   6 dB */
-	tda18271_write_regs(fe, R_EB18, 1);
+	ret = tda18271_write_regs(fe, R_EB18, 1);
+	if (tda_fail(ret))
+		goto fail;
 
 	regs[R_EB21] &= ~0x03; /* set agc2_gain to -15 dB */
 
@@ -500,9 +525,9 @@ static int tda18271_powerscan_init(struct dvb_frontend *fe)
 	regs[R_EB23] |= 0x04; /* forcelp_fc2_en = 1 */
 	regs[R_EB23] |= 0x02; /* lp_fc[2] = 1 */
 
-	tda18271_write_regs(fe, R_EB21, 3);
-
-	return 0;
+	ret = tda18271_write_regs(fe, R_EB21, 3);
+fail:
+	return ret;
 }
 
 static int tda18271_rf_tracking_filters_init(struct dvb_frontend *fe, u32 freq)
@@ -521,7 +546,7 @@ static int tda18271_rf_tracking_filters_init(struct dvb_frontend *fe, u32 freq)
 
 	i = tda18271_lookup_rf_band(fe, &freq, NULL);
 
-	if (i < 0)
+	if (tda_fail(i))
 		return i;
 
 	rf_default[RF1] = 1000 * map[i].rf1_def;
@@ -535,6 +560,8 @@ static int tda18271_rf_tracking_filters_init(struct dvb_frontend *fe, u32 freq)
 
 		/* look for optimized calibration frequency */
 		bcal = tda18271_powerscan(fe, &rf_default[rf], &rf_freq[rf]);
+		if (tda_fail(bcal))
+			return bcal;
 
 		tda18271_calc_rf_cal(fe, &rf_freq[rf]);
 		prog_tab[rf] = regs[R_EB14];
@@ -575,22 +602,29 @@ static int tda18271_calc_rf_filter_curve(struct dvb_frontend *fe)
 {
 	struct tda18271_priv *priv = fe->tuner_priv;
 	unsigned int i;
+	int ret;
 
 	tda_info("tda18271: performing RF tracking filter calibration\n");
 
 	/* wait for die temperature stabilization */
 	msleep(200);
 
-	tda18271_powerscan_init(fe);
+	ret = tda18271_powerscan_init(fe);
+	if (tda_fail(ret))
+		goto fail;
 
 	/* rf band calibration */
-	for (i = 0; priv->rf_cal_state[i].rfmax != 0; i++)
+	for (i = 0; priv->rf_cal_state[i].rfmax != 0; i++) {
+		ret =
 		tda18271_rf_tracking_filters_init(fe, 1000 *
 						  priv->rf_cal_state[i].rfmax);
+		if (tda_fail(ret))
+			goto fail;
+	}
 
 	priv->tm_rfcal = tda18271_read_thermometer(fe);
-
-	return 0;
+fail:
+	return ret;
 }
 
 /* ------------------------------------------------------------------ */
@@ -599,6 +633,7 @@ static int tda18271c2_rf_cal_init(struct dvb_frontend *fe)
 {
 	struct tda18271_priv *priv = fe->tuner_priv;
 	unsigned char *regs = priv->tda18271_regs;
+	int ret;
 
 	/* test RF_CAL_OK to see if we need init */
 	if ((regs[R_EP1] & 0x10) == 0)
@@ -607,15 +642,22 @@ static int tda18271c2_rf_cal_init(struct dvb_frontend *fe)
 	if (priv->cal_initialized)
 		return 0;
 
-	tda18271_calc_rf_filter_curve(fe);
+	ret = tda18271_calc_rf_filter_curve(fe);
+	if (tda_fail(ret))
+		goto fail;
 
-	tda18271_por(fe);
+	ret = tda18271_por(fe);
+	if (tda_fail(ret))
+		goto fail;
 
 	tda_info("tda18271: RF tracking filter calibration complete\n");
 
 	priv->cal_initialized = true;
-
-	return 0;
+	goto end;
+fail:
+	tda_info("tda18271: RF tracking filter calibration failed!\n");
+end:
+	return ret;
 }
 
 static int tda18271c1_rf_tracking_filter_calibration(struct dvb_frontend *fe,
@@ -623,6 +665,7 @@ static int tda18271c1_rf_tracking_filter_calibration(struct dvb_frontend *fe,
 {
 	struct tda18271_priv *priv = fe->tuner_priv;
 	unsigned char *regs = priv->tda18271_regs;
+	int ret;
 	u32 N = 0;
 
 	/* calculate bp filter */
@@ -671,7 +714,10 @@ static int tda18271c1_rf_tracking_filter_calibration(struct dvb_frontend *fe,
 
 	tda18271_calc_main_pll(fe, N);
 
-	tda18271_write_regs(fe, R_EP3, 11);
+	ret = tda18271_write_regs(fe, R_EP3, 11);
+	if (tda_fail(ret))
+		return ret;
+
 	msleep(5); /* RF tracking filter calibration initialization */
 
 	/* search for K,M,CO for RF calibration */
@@ -719,45 +765,56 @@ static int tda18271_ir_cal_init(struct dvb_frontend *fe)
 {
 	struct tda18271_priv *priv = fe->tuner_priv;
 	unsigned char *regs = priv->tda18271_regs;
+	int ret;
 
-	tda18271_read_regs(fe);
+	ret = tda18271_read_regs(fe);
+	if (tda_fail(ret))
+		goto fail;
 
 	/* test IR_CAL_OK to see if we need init */
 	if ((regs[R_EP1] & 0x08) == 0)
-		tda18271_init_regs(fe);
-
-	return 0;
+		ret = tda18271_init_regs(fe);
+fail:
+	return ret;
 }
 
 static int tda18271_init(struct dvb_frontend *fe)
 {
 	struct tda18271_priv *priv = fe->tuner_priv;
+	int ret;
 
 	mutex_lock(&priv->lock);
 
 	/* power up */
-	tda18271_set_standby_mode(fe, 0, 0, 0);
+	ret = tda18271_set_standby_mode(fe, 0, 0, 0);
+	if (tda_fail(ret))
+		goto fail;
 
 	/* initialization */
-	tda18271_ir_cal_init(fe);
+	ret = tda18271_ir_cal_init(fe);
+	if (tda_fail(ret))
+		goto fail;
 
 	if (priv->id == TDA18271HDC2)
 		tda18271c2_rf_cal_init(fe);
-
+fail:
 	mutex_unlock(&priv->lock);
 
-	return 0;
+	return ret;
 }
 
 static int tda18271_tune(struct dvb_frontend *fe,
 			 struct tda18271_std_map_item *map, u32 freq, u32 bw)
 {
 	struct tda18271_priv *priv = fe->tuner_priv;
+	int ret;
 
 	tda_dbg("freq = %d, ifc = %d, bw = %d, agc_mode = %d, std = %d\n",
 		freq, map->if_freq, bw, map->agc_mode, map->std);
 
-	tda18271_init(fe);
+	ret = tda18271_init(fe);
+	if (tda_fail(ret))
+		goto fail;
 
 	mutex_lock(&priv->lock);
 
@@ -769,11 +826,11 @@ static int tda18271_tune(struct dvb_frontend *fe,
 		tda18271c2_rf_tracking_filters_correction(fe, freq);
 		break;
 	}
-	tda18271_channel_configuration(fe, map, freq, bw);
+	ret = tda18271_channel_configuration(fe, map, freq, bw);
 
 	mutex_unlock(&priv->lock);
-
-	return 0;
+fail:
+	return ret;
 }
 
 /* ------------------------------------------------------------------ */
@@ -837,7 +894,7 @@ static int tda18271_set_params(struct dvb_frontend *fe,
 
 	ret = tda18271_tune(fe, map, freq, bw);
 
-	if (ret < 0)
+	if (tda_fail(ret))
 		goto fail;
 
 	priv->frequency = freq;
@@ -893,7 +950,7 @@ static int tda18271_set_analog_params(struct dvb_frontend *fe,
 
 	ret = tda18271_tune(fe, map, freq, 0);
 
-	if (ret < 0)
+	if (tda_fail(ret))
 		goto fail;
 
 	priv->frequency = freq;
@@ -905,16 +962,17 @@ fail:
 static int tda18271_sleep(struct dvb_frontend *fe)
 {
 	struct tda18271_priv *priv = fe->tuner_priv;
+	int ret;
 
 	mutex_lock(&priv->lock);
 
 	/* standby mode w/ slave tuner output
 	 * & loop thru & xtal oscillator on */
-	tda18271_set_standby_mode(fe, 1, 0, 0);
+	ret = tda18271_set_standby_mode(fe, 1, 0, 0);
 
 	mutex_unlock(&priv->lock);
 
-	return 0;
+	return ret;
 }
 
 static int tda18271_release(struct dvb_frontend *fe)
@@ -1095,10 +1153,10 @@ struct dvb_frontend *tda18271_attach(struct dvb_frontend *fe, u8 addr,
 		if (cfg)
 			priv->small_i2c = cfg->small_i2c;
 
-		if (tda18271_get_id(fe) < 0)
+		if (tda_fail(tda18271_get_id(fe)))
 			goto fail;
 
-		if (tda18271_assign_map_layout(fe) < 0)
+		if (tda_fail(tda18271_assign_map_layout(fe)))
 			goto fail;
 
 		mutex_lock(&priv->lock);