diff mbox series

[2/5] soundwire: stream: use consistent pattern for freeing buffers

Message ID 20230113093532.3872113-3-yung-chuan.liao@linux.intel.com
State Superseded
Headers show
Series soundwire: better error handling in deferred transfers | expand

Commit Message

Liao, Bard Jan. 13, 2023, 9:35 a.m. UTC 
From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>

The code should free the message buffer used for data, the message
structure used for control and assign the latter to NULL. The last
part is missing for multi-link cases, and the order is inconsistent
for single-link cases.

Link: https://github.com/thesofproject/linux/issues/4056
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
---
 drivers/soundwire/stream.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/soundwire/stream.c b/drivers/soundwire/stream.c
index e0eae0b98267..f27bd37b154d 100644
--- a/drivers/soundwire/stream.c
+++ b/drivers/soundwire/stream.c
@@ -723,8 +723,8 @@  static int sdw_bank_switch(struct sdw_bus *bus, int m_rt_count)
 	}
 
 	if (!multi_link) {
-		kfree(wr_msg);
 		kfree(wbuf);
+		kfree(wr_msg);
 		bus->defer_msg.msg = NULL;
 		bus->params.curr_bank = !bus->params.curr_bank;
 		bus->params.next_bank = !bus->params.next_bank;
@@ -769,6 +769,7 @@  static int sdw_ml_sync_bank_switch(struct sdw_bus *bus)
 	if (bus->defer_msg.msg) {
 		kfree(bus->defer_msg.msg->buf);
 		kfree(bus->defer_msg.msg);
+		bus->defer_msg.msg = NULL;
 	}
 
 	return 0;
@@ -867,6 +868,7 @@  static int do_bank_switch(struct sdw_stream_runtime *stream)
 		if (bus->defer_msg.msg) {
 			kfree(bus->defer_msg.msg->buf);
 			kfree(bus->defer_msg.msg);
+			bus->defer_msg.msg = NULL;
 		}
 	}