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authorMichael Krufky <mkrufky@linuxtv.org>2008-05-03 18:20:21 -0300
committerMauro Carvalho Chehab <mchehab@infradead.org>2008-05-14 02:54:04 -0300
commitd35fccaffd095e79691cd07a49a36867cb275b72 (patch)
treea9b6995cc39827cf486c70e6b3aab1ca11df8a57
parentdc9d522a1358bfb87e9ed8718cc1e4d5141a5468 (diff)
V4L/DVB (7837): tda18271: fix error handling in init and sleep paths
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
-rw-r--r--drivers/media/common/tuners/tda18271-common.c7
-rw-r--r--drivers/media/common/tuners/tda18271-fe.c38
2 files changed, 27 insertions, 18 deletions
diff --git a/drivers/media/common/tuners/tda18271-common.c b/drivers/media/common/tuners/tda18271-common.c
index e27a7620a32..9001d422cc1 100644
--- a/drivers/media/common/tuners/tda18271-common.c
+++ b/drivers/media/common/tuners/tda18271-common.c
@@ -227,9 +227,8 @@ int tda18271_charge_pump_source(struct dvb_frontend *fe,
regs[r_cp] &= ~0x20;
regs[r_cp] |= ((force & 1) << 5);
- tda18271_write_regs(fe, r_cp, 1);
- return 0;
+ return tda18271_write_regs(fe, r_cp, 1);
}
int tda18271_init_regs(struct dvb_frontend *fe)
@@ -494,9 +493,7 @@ int tda18271_set_standby_mode(struct dvb_frontend *fe,
sm_lt ? (1 << 6) : 0 |
sm_xt ? (1 << 5) : 0;
- tda18271_write_regs(fe, R_EP3, 1);
-
- return 0;
+ return tda18271_write_regs(fe, R_EP3, 1);
}
/*---------------------------------------------------------------------*/
diff --git a/drivers/media/common/tuners/tda18271-fe.c b/drivers/media/common/tuners/tda18271-fe.c
index b262100ae89..46c080089eb 100644
--- a/drivers/media/common/tuners/tda18271-fe.c
+++ b/drivers/media/common/tuners/tda18271-fe.c
@@ -719,45 +719,56 @@ 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 (ret < 0)
+ 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 (ret < 0)
+ goto fail;
/* initialization */
- tda18271_ir_cal_init(fe);
+ ret = tda18271_ir_cal_init(fe);
+ if (ret < 0)
+ 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 (ret < 0)
+ goto fail;
mutex_lock(&priv->lock);
@@ -772,8 +783,8 @@ static int tda18271_tune(struct dvb_frontend *fe,
tda18271_channel_configuration(fe, map, freq, bw);
mutex_unlock(&priv->lock);
-
- return 0;
+fail:
+ return ret;
}
/* ------------------------------------------------------------------ */
@@ -905,16 +916,17 @@ 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)