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Commit 33f25b42 authored by Michael Krufky's avatar Michael Krufky Committed by Mauro Carvalho Chehab
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V4L/DVB (6957): tda18271: fail table lookups if frequency is out of range 



Signed-off-by: default avatarMichael Krufky <mkrufky@linuxtv.org>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@infradead.org>
parent 0be43754

drivers/media/dvb/frontends/tda18271-fe.c

+0 −5
Original line number Diff line number Diff line
@@ -502,11 +502,6 @@ static int tda18271_calc_rf_cal(struct dvb_frontend *fe, u32 *freq) 
	if (ret < 0)

		goto fail;



	/* VHF_Low band only */

	if (0 == val) {

		ret = -ERANGE;

		goto fail;

	}

	regs[R_EB14] = val;

fail:

	return ret;

drivers/media/dvb/frontends/tda18271-tables.c

+20 −8
Original line number Diff line number Diff line
@@ -273,6 +273,7 @@ int tda18271_lookup_pll_map(enum tda18271_map_type map_type, 
	struct tda18271_pll_map *map = NULL;

	unsigned int i = 0;

	char *map_name;

	int ret = 0;



	switch (map_type) {

	case MAIN_PLL:
@@ -291,12 +292,17 @@ int tda18271_lookup_pll_map(enum tda18271_map_type map_type, 


	if (!map) {

		tda_warn("%s map is not set!\n", map_name);

		return -EINVAL;

		ret = -EINVAL;

		goto fail;

	}



	while ((map[i].lomax * 1000) < *freq) {

		if (map[i + 1].lomax == 0)

		if (map[i].lomax == 0) {

			tda_map("%s: frequency (%d) out of range\n",

				map_name, *freq);

			ret = -ERANGE;

			break;

		}

		i++;

	}

	*post_div = map[i].pd;
@@ -304,8 +310,8 @@ int tda18271_lookup_pll_map(enum tda18271_map_type map_type, 


	tda_map("%s: post div = 0x%02x, div = 0x%02x\n",

		map_name, *post_div, *div);



	return 0;

fail:

	return ret;

}



int tda18271_lookup_map(enum tda18271_map_type map_type, u32 *freq, u8 *val)
@@ -313,6 +319,7 @@ int tda18271_lookup_map(enum tda18271_map_type map_type, u32 *freq, u8 *val) 
	struct tda18271_map *map = NULL;

	unsigned int i = 0;

	char *map_name;

	int ret = 0;



	switch (map_type) {

	case BP_FILTER:
@@ -347,19 +354,24 @@ int tda18271_lookup_map(enum tda18271_map_type map_type, u32 *freq, u8 *val) 


	if (!map) {

		tda_warn("%s map is not set!\n", map_name);

		return -EINVAL;

		ret = -EINVAL;

		goto fail;

	}



	while ((map[i].rfmax * 1000) < *freq) {

		if (map[i + 1].rfmax == 0)

		if (map[i].rfmax == 0) {

			tda_map("%s: frequency (%d) out of range\n",

				map_name, *freq);

			ret = -ERANGE;

			break;

		}

		i++;

	}

	*val = map[i].val;



	tda_map("%s: 0x%02x\n", map_name, *val);



	return 0;

fail:

	return ret;

}



/*