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V4L/DVB (7804): tea5767: Fix error logic

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As pointed by Andrew Morton, the error testing were wrong. After reviewing
tea5767, it were returning a positive value for errors.

So, the double errors were cancelling each other.

This patch fix it properly. It also considers any positive value as ok, on
tuner-core.


Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Mauro Carvalho Chehab 2008-04-30 15:45:00 -03:00
parent 09fee5f821
commit b538d28c2e
2 changed files with 5 additions and 5 deletions
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6
drivers/media/common/tuners/tea5767.c
View File

@ -373,14 +373,14 @@ int tea5767_autodetection(struct i2c_adapter* i2c_adap, u8 i2c_addr)
if ((rc = tuner_i2c_xfer_recv(&i2c, buffer, 7))< 5) {
printk(KERN_WARNING "It is not a TEA5767. Received %i bytes.\n", rc);
return EINVAL;
return -EINVAL;
}
/* If all bytes are the same then it's a TV tuner and not a tea5767 */
if (buffer[0] == buffer[1] && buffer[0] == buffer[2] &&
buffer[0] == buffer[3] && buffer[0] == buffer[4]) {
printk(KERN_WARNING "All bytes are equal. It is not a TEA5767\n");
return EINVAL;
return -EINVAL;
}
/* Status bytes:
@ -390,7 +390,7 @@ int tea5767_autodetection(struct i2c_adapter* i2c_adap, u8 i2c_addr)
*/
if (((buffer[3] & 0x0f) != 0x00) || (buffer[4] != 0x00)) {
printk(KERN_WARNING "Chip ID is not zero. It is not a TEA5767\n");
return EINVAL;
return -EINVAL;
}

4
drivers/media/video/tuner-core.c
View File

@ -1165,7 +1165,7 @@ static int tuner_probe(struct i2c_client *client,
/* If chip is not tda8290, don't register.
since it can be tda9887*/
if (tuner_symbol_probe(tda829x_probe, t->i2c->adapter,
t->i2c->addr) == 0) {
t->i2c->addr) >= 0) {
tuner_dbg("tda829x detected\n");
} else {
/* Default is being tda9887 */
@ -1179,7 +1179,7 @@ static int tuner_probe(struct i2c_client *client,
case 0x60:
if (tuner_symbol_probe(tea5767_autodetection,
t->i2c->adapter, t->i2c->addr)
!= EINVAL) {
>= 0) {
t->type = TUNER_TEA5767;
t->mode_mask = T_RADIO;
t->mode = T_STANDBY;