[alsa-devel] [PATCH v8 03/10] soundwire: Fix acquiring bus lock twice during master release

[Shreyas NC]

From: Sanyog Kale <sanyog.r.kale at intel.com>

As part of sdw_stream_remove_master(), sdw_stream_remove_slave() is called
which results in bus lock being acquired twice.

So, fix it by performing specific Slave remove operations in
sdw_release_master_stream() instead of calling sdw_stream_remove_slave().

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart at linux.intel.com>
Signed-off-by: Sanyog Kale <sanyog.r.kale at intel.com>
Signed-off-by: Shreyas NC <shreyas.nc at intel.com>
---
 drivers/soundwire/stream.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/soundwire/stream.c b/drivers/soundwire/stream.c
index eaaa180..28d4147 100644
--- a/drivers/soundwire/stream.c
+++ b/drivers/soundwire/stream.c
@@ -899,9 +899,10 @@ static void sdw_release_master_stream(struct sdw_stream_runtime *stream)
 	struct sdw_master_runtime *m_rt = stream->m_rt;
 	struct sdw_slave_runtime *s_rt, *_s_rt;
 
-	list_for_each_entry_safe(s_rt, _s_rt,
-			&m_rt->slave_rt_list, m_rt_node)
-		sdw_stream_remove_slave(s_rt->slave, stream);
+	list_for_each_entry_safe(s_rt, _s_rt, &m_rt->slave_rt_list, m_rt_node) {
+		sdw_slave_port_release(s_rt->slave->bus, s_rt->slave, stream);
+		sdw_release_slave_stream(s_rt->slave, stream);
+	}
 
 	list_del(&m_rt->bus_node);
 }
-- 
2.7.4