[PATCH v2 05/14] soundwire: generic_bandwidth_allocation: skip DEPREPARED streams

[Bard Liao]

From: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxx>

We should not blindly walk through all the m_rt list, since it will
have the side effect of accounting for deprepared streams.

This behavior is the result of the split implementation where the
dailink hw_free() handles the stream state change and the bit
allocation, and the dai hw_free() modifies the m_rt list. The bit
allocation ends-up using m_rt entries in zombie state, no longer
relevant but still used.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxx>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@xxxxxxxxxxxxxxx>
Signed-off-by: Bard Liao <yung-chuan.liao@xxxxxxxxxxxxxxx>
---
 drivers/soundwire/generic_bandwidth_allocation.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/soundwire/generic_bandwidth_allocation.c b/drivers/soundwire/generic_bandwidth_allocation.c
index abf9b85daa52..2950a3d002ce 100644
--- a/drivers/soundwire/generic_bandwidth_allocation.c
+++ b/drivers/soundwire/generic_bandwidth_allocation.c
@@ -238,6 +238,9 @@ static int sdw_get_group_count(struct sdw_bus *bus,
 		return -ENOMEM;
 
 	list_for_each_entry(m_rt, &bus->m_rt_list, bus_node) {
+		if (m_rt->stream->state == SDW_STREAM_DEPREPARED)
+			continue;
+
 		rate = m_rt->stream->params.rate;
 		if (m_rt == list_first_entry(&bus->m_rt_list,
 					     struct sdw_master_runtime,
-- 
2.43.0