diff options
| author | Jemma Denson <jdenson@gmail.com> | 2016-02-28 19:29:50 +0100 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2016-03-03 18:26:55 +0100 |
| commit | 035cad576d4e8c472a97b8913f92f73c93205fd3 (patch) | |
| tree | ea7091bd2e45ab75793a8276305445ea8a0f65aa | |
| parent | [media] em28xx: add support for Terratec Grabby Record led (diff) | |
| download | linux-035cad576d4e8c472a97b8913f92f73c93205fd3.tar.xz linux-035cad576d4e8c472a97b8913f92f73c93205fd3.zip | |
[media] cx24120: make sure tuner is locked at get_frontend
Change get_frontend to re-check current lock status rather than relying
on a cached value from get_status. Removes potential for tuning failure
if get_frontend is called during tuning.
Probably not too essential as other changes work around this:
https://patchwork.linuxtv.org/patch/32845/
Signed-off-by: Jemma Denson <jdenson@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
| -rw-r--r-- | drivers/media/dvb-frontends/cx24120.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/media/dvb-frontends/cx24120.c b/drivers/media/dvb-frontends/cx24120.c index 6ccbd86c9490..066ee387bf25 100644 --- a/drivers/media/dvb-frontends/cx24120.c +++ b/drivers/media/dvb-frontends/cx24120.c @@ -1507,11 +1507,13 @@ static int cx24120_get_frontend(struct dvb_frontend *fe, { struct cx24120_state *state = fe->demodulator_priv; u8 freq1, freq2, freq3; + int status; dev_dbg(&state->i2c->dev, "\n"); /* don't return empty data if we're not tuned in */ - if ((state->fe_status & FE_HAS_LOCK) == 0) + status = cx24120_readreg(state, CX24120_REG_STATUS); + if (!(status & CX24120_HAS_LOCK)) return 0; /* Get frequency */ |