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V4L/DVB (7128): tuner: properly handle failed calls to simple_tuner_attach 

If simple_tuner_attach fails, set t->type to TUNER_ABSENT,
set t->mode_mask to T_UNINITIALIZED, and exit the set_type function.

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Michael Krufky 2008-04-22 14:41:51 -03:00 committed by Mauro Carvalho Chehab
parent 060a5bd764
commit b65aa26056
1 changed files with 18 additions and 8 deletions
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26
drivers/media/video/tuner-core.c
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@ -317,11 +317,6 @@ static void tuner_i2c_address_check(struct tuner *t)
tuner_warn("====================== WARNING! ======================\n");
}
static inline void attach_simple_tuner(struct tuner *t)
{
simple_tuner_attach(&t->fe, t->i2c->adapter, t->i2c->addr, t->type);
}
static void attach_tda829x(struct tuner *t)
{
struct tda829x_config cfg = {
@ -399,7 +394,12 @@ static void set_type(struct i2c_client *c, unsigned int type,
buffer[2] = 0x86;
buffer[3] = 0x54;
i2c_master_send(c, buffer, 4);
attach_simple_tuner(t);
if (simple_tuner_attach(&t->fe, t->i2c->adapter, t->i2c->addr,
t->type) == NULL) {
t->type = TUNER_ABSENT;
t->mode_mask = T_UNINITIALIZED;
return;
}
break;
case TUNER_PHILIPS_TD1316:
buffer[0] = 0x0b;
@ -407,7 +407,12 @@ static void set_type(struct i2c_client *c, unsigned int type,
buffer[2] = 0x86;
buffer[3] = 0xa4;
i2c_master_send(c,buffer,4);
attach_simple_tuner(t);
if (simple_tuner_attach(&t->fe, t->i2c->adapter,
t->i2c->addr, t->type) == NULL) {
t->type = TUNER_ABSENT;
t->mode_mask = T_UNINITIALIZED;
return;
}
break;
case TUNER_XC2028:
{
@ -445,7 +450,12 @@ static void set_type(struct i2c_client *c, unsigned int type,
}
break;
default:
attach_simple_tuner(t);
if (simple_tuner_attach(&t->fe, t->i2c->adapter,
t->i2c->addr, t->type) == NULL) {
t->type = TUNER_ABSENT;
t->mode_mask = T_UNINITIALIZED;
return;
}
break;
}