diff options
| author | Paul Bolle | 2012-11-01 17:00:09 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab | 2012-12-21 18:25:13 -0200 |
| commit | ed2e33011451f655052ff1d3aa9ee936057d508b (patch) | |
| tree | 73a42c53539da33dc2c88bec6b012592c6c4cb65 /drivers/media/tuners | |
| parent | cb31c7487580a0cfc6eb253e604c1e51ac8eb3c8 (diff) | |
[media] tda18212: tda18218: use 'val' if initialized
Commits e666a44fa313cb9329c0381ad02fc6ee1e21cb31 ("[media] tda18212:
silence compiler warning") and e0e52d4e9f5bce7ea887027c127473eb654a5a04
("[media] tda18218: silence compiler warning") silenced warnings
equivalent to these:
drivers/media/tuners/tda18212.c: In function ‘tda18212_attach’:
drivers/media/tuners/tda18212.c:299:2: warning: ‘val’ may be used uninitialized in this function [-Wmaybe-uninitialized]
drivers/media/tuners/tda18218.c: In function ‘tda18218_attach’:
drivers/media/tuners/tda18218.c:305:2: warning: ‘val’ may be used uninitialized in this function [-Wmaybe-uninitialized]
But in both cases 'val' will still be used uninitialized if the calls
of tda18212_rd_reg() or tda18218_rd_reg() fail. Fix this by only
printing the "chip id" if the calls of those functions were successful.
This allows to drop the uninitialized_var() stopgap measure.
Also stop printing the return values of tda18212_rd_reg() or
tda18218_rd_reg(), as these are not interesting.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Acked-by: Antti Palosaari <crope@iki.fi>
Reviewed-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/tuners')
| -rw-r--r-- | drivers/media/tuners/tda18212.c | 6 | ||||
| -rw-r--r-- | drivers/media/tuners/tda18218.c | 6 |
2 files changed, 6 insertions, 6 deletions
diff --git a/drivers/media/tuners/tda18212.c b/drivers/media/tuners/tda18212.c index 5d9f02842501..e4a84ee231cf 100644 --- a/drivers/media/tuners/tda18212.c +++ b/drivers/media/tuners/tda18212.c @@ -277,7 +277,7 @@ struct dvb_frontend *tda18212_attach(struct dvb_frontend *fe, { struct tda18212_priv *priv = NULL; int ret; - u8 uninitialized_var(val); + u8 val; priv = kzalloc(sizeof(struct tda18212_priv), GFP_KERNEL); if (priv == NULL) @@ -296,8 +296,8 @@ struct dvb_frontend *tda18212_attach(struct dvb_frontend *fe, if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 0); /* close I2C-gate */ - dev_dbg(&priv->i2c->dev, "%s: ret=%d chip id=%02x\n", __func__, ret, - val); + if (!ret) + dev_dbg(&priv->i2c->dev, "%s: chip id=%02x\n", __func__, val); if (ret || val != 0xc7) { kfree(priv); return NULL; diff --git a/drivers/media/tuners/tda18218.c b/drivers/media/tuners/tda18218.c index 18198537be9f..2d31aeb6b088 100644 --- a/drivers/media/tuners/tda18218.c +++ b/drivers/media/tuners/tda18218.c @@ -277,7 +277,7 @@ struct dvb_frontend *tda18218_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c, struct tda18218_config *cfg) { struct tda18218_priv *priv = NULL; - u8 uninitialized_var(val); + u8 val; int ret; /* chip default registers values */ static u8 def_regs[] = { @@ -302,8 +302,8 @@ struct dvb_frontend *tda18218_attach(struct dvb_frontend *fe, /* check if the tuner is there */ ret = tda18218_rd_reg(priv, R00_ID, &val); - dev_dbg(&priv->i2c->dev, "%s: ret=%d chip id=%02x\n", __func__, ret, - val); + if (!ret) + dev_dbg(&priv->i2c->dev, "%s: chip id=%02x\n", __func__, val); if (ret || val != def_regs[R00_ID]) { kfree(priv); return NULL; |