diff options
Diffstat (limited to 'drivers/slimbus/stream.c')
| -rw-r--r-- | drivers/slimbus/stream.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/drivers/slimbus/stream.c b/drivers/slimbus/stream.c index 73a2aa362957..1d6b38657917 100644 --- a/drivers/slimbus/stream.c +++ b/drivers/slimbus/stream.c @@ -204,7 +204,7 @@ int slim_stream_prepare(struct slim_stream_runtime *rt, { struct slim_controller *ctrl = rt->dev->ctrl; struct slim_port *port; - int num_ports, i, port_id; + int num_ports, i, port_id, prrate; if (rt->ports) { dev_err(&rt->dev->dev, "Stream already Prepared\n"); @@ -221,6 +221,13 @@ int slim_stream_prepare(struct slim_stream_runtime *rt, rt->bps = cfg->bps; rt->direction = cfg->direction; + prrate = slim_get_prate_code(cfg->rate); + if (prrate < 0) { + dev_err(&rt->dev->dev, "Cannot get presence rate for rate %d Hz\n", + cfg->rate); + return prrate; + } + if (cfg->rate % ctrl->a_framer->superfreq) { /* * data rate not exactly multiple of super frame, @@ -241,7 +248,7 @@ int slim_stream_prepare(struct slim_stream_runtime *rt, port = &rt->ports[i]; port->state = SLIM_PORT_DISCONNECTED; port->id = port_id; - port->ch.prrate = slim_get_prate_code(cfg->rate); + port->ch.prrate = prrate; port->ch.id = cfg->chs[i]; port->ch.data_fmt = SLIM_CH_DATA_FMT_NOT_DEFINED; port->ch.aux_fmt = SLIM_CH_AUX_FMT_NOT_APPLICABLE; @@ -407,6 +414,9 @@ int slim_stream_disable(struct slim_stream_runtime *stream) struct slim_controller *ctrl = stream->dev->ctrl; int ret, i; + if (!stream->ports || !stream->num_ports) + return -EINVAL; + if (ctrl->disable_stream) ctrl->disable_stream(stream); @@ -438,6 +448,9 @@ int slim_stream_unprepare(struct slim_stream_runtime *stream) { int i; + if (!stream->ports || !stream->num_ports) + return -EINVAL; + for (i = 0; i < stream->num_ports; i++) slim_disconnect_port(stream, &stream->ports[i]); |