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authorMichael Krufky <mkrufky@linuxtv.org>2008-05-04 20:26:47 -0300
committerMauro Carvalho Chehab <mchehab@infradead.org>2008-05-14 02:54:06 -0300
commit10ed0bf4af00c25590e8bfca344d8dec5c3637ae (patch)
treee7f926ff1cc5e3c4e06f3710ebe911cad7dafa46
parent20f4206379260e3ca02c8ee57bc3da9b0c7d09da (diff)
V4L/DVB (7843): tda18271: fix error handling in tda18271c1_rf_tracking_filter_calibration
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-fe.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/media/common/tuners/tda18271-fe.c b/drivers/media/common/tuners/tda18271-fe.c
index 8b44d4c62bf..13d651c987a 100644
--- a/drivers/media/common/tuners/tda18271-fe.c
+++ b/drivers/media/common/tuners/tda18271-fe.c
@@ -665,6 +665,7 @@ static int tda18271c1_rf_tracking_filter_calibration(struct dvb_frontend *fe,
{
struct tda18271_priv *priv = fe->tuner_priv;
unsigned char *regs = priv->tda18271_regs;
+ int ret;
u32 N = 0;
/* calculate bp filter */
@@ -713,7 +714,10 @@ static int tda18271c1_rf_tracking_filter_calibration(struct dvb_frontend *fe,
tda18271_calc_main_pll(fe, N);
- tda18271_write_regs(fe, R_EP3, 11);
+ ret = tda18271_write_regs(fe, R_EP3, 11);
+ if (ret < 0)
+ return ret;
+
msleep(5); /* RF tracking filter calibration initialization */
/* search for K,M,CO for RF calibration */