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Subject[PATCH] soundwire: fix double free of pointer
Date
If sdw_ml_sync_bank_switch() returns error not on the first iteration,
it leads to freeing prevously freed memory. So, set the pointer to NULL
after each successful bank switch.

Signed-off-by: Daniil Dulov <d.dulov@aladdin.ru>
---
drivers/soundwire/stream.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/soundwire/stream.c b/drivers/soundwire/stream.c
index 304ff2ee7d75..d650e6f0f8e7 100644
--- a/drivers/soundwire/stream.c
+++ b/drivers/soundwire/stream.c
@@ -833,6 +833,7 @@ static int do_bank_switch(struct sdw_stream_runtime *stream)
"multi link bank switch failed: %d\n", ret);
goto error;
}
+ bus->defer_msg.msg = NULL;

if (multi_link)
mutex_unlock(&bus->msg_lock);
--
2.25.1

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