V4L/DVB (13987): [STV090x] Quit processing if the tuner did not lock

Exit stv090x_algo() if the tuner did not lock. This might happen due to
missing signal or invalid/incomplete tuning parameters.

Signed-off-by: Oliver Endriss <o.endriss@gmx.de>
Signed-off-by: Manu Abraham <abraham.manu@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 11 insertions, 11 deletions

diff --git a/drivers/media/dvb/frontends/stv090x.c b/drivers/media/dvb/frontends/stv090x.c
index cc487f6bdcee..a5bae404701c 100644
--- a/drivers/media/dvb/frontends/stv090x.c
+++ b/drivers/media/dvb/frontends/stv090x.c
@@ -3256,21 +3256,21 @@ static enum stv090x_signal_state stv090x_algo(struct stv090x_state *state)
 
         msleep(50);
 
-        if (stv090x_i2c_gate_ctrl(fe, 1) < 0)
-                goto err;
-
         if (state->config->tuner_get_status) {
+                if (stv090x_i2c_gate_ctrl(fe, 1) < 0)
+                        goto err;
                 if (state->config->tuner_get_status(fe, &reg) < 0)
                         goto err_gateoff;
-        }
-
-        if (reg)
-                dprintk(FE_DEBUG, 1, "Tuner phase locked");
-        else
-                dprintk(FE_DEBUG, 1, "Tuner unlocked");
+                if (stv090x_i2c_gate_ctrl(fe, 0) < 0)
+                        goto err;
 
-        if (stv090x_i2c_gate_ctrl(fe, 0) < 0)
-                goto err;
+                if (reg)
+                        dprintk(FE_DEBUG, 1, "Tuner phase locked");
+                else {
+                        dprintk(FE_DEBUG, 1, "Tuner unlocked");
+                        return STV090x_NOCARRIER;
+                }
+        }
 
         msleep(10);
         agc1_power = MAKEWORD16(STV090x_READ_DEMOD(state, AGCIQIN1),