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-rw-r--r--drivers/media/dvb/dvb-core/dvb_frontend.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/media/dvb/dvb-core/dvb_frontend.c b/drivers/media/dvb/dvb-core/dvb_frontend.c
index fbbe545a74cb..eb376732cad5 100644
--- a/drivers/media/dvb/dvb-core/dvb_frontend.c
+++ b/drivers/media/dvb/dvb-core/dvb_frontend.c
@@ -143,6 +143,8 @@ struct dvb_frontend_private {
static void dvb_frontend_wakeup(struct dvb_frontend *fe);
static int dtv_get_frontend(struct dvb_frontend *fe,
struct dvb_frontend_parameters *p_out);
+static int dtv_property_legacy_params_sync(struct dvb_frontend *fe,
+ struct dvb_frontend_parameters *p);
static bool has_get_frontend(struct dvb_frontend *fe)
{
@@ -695,6 +697,7 @@ restart:
fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN;
fepriv->delay = HZ / 2;
}
+ dtv_property_legacy_params_sync(fe, &fepriv->parameters_out);
fe->ops.read_status(fe, &s);
if (s != fepriv->status) {
dvb_frontend_add_event(fe, s); /* update event list */
@@ -1831,6 +1834,13 @@ static int dtv_set_frontend(struct dvb_frontend *fe)
return -EINVAL;
/*
+ * Initialize output parameters to match the values given by
+ * the user. FE_SET_FRONTEND triggers an initial frontend event
+ * with status = 0, which copies output parameters to userspace.
+ */
+ dtv_property_legacy_params_sync(fe, &fepriv->parameters_out);
+
+ /*
* Be sure that the bandwidth will be filled for all
* non-satellite systems, as tuners need to know what
* low pass/Nyquist half filter should be applied, in