From 035cad576d4e8c472a97b8913f92f73c93205fd3 Mon Sep 17 00:00:00 2001 From: Jemma Denson Date: Sun, 28 Feb 2016 15:29:50 -0300 Subject: [PATCH] [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 Signed-off-by: Mauro Carvalho Chehab --- drivers/media/dvb-frontends/cx24120.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/media/dvb-frontends/cx24120.c b/drivers/media/dvb-frontends/cx24120.c index 6ccbd86..066ee38 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 */ -- 2.7.4