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-rw-r--r--sound/firewire/amdtp-stream.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/sound/firewire/amdtp-stream.c b/sound/firewire/amdtp-stream.c
index ed2902609a4c..4484242da0e6 100644
--- a/sound/firewire/amdtp-stream.c
+++ b/sound/firewire/amdtp-stream.c
@@ -102,6 +102,10 @@ EXPORT_SYMBOL(amdtp_stream_init);
*/
void amdtp_stream_destroy(struct amdtp_stream *s)
{
+ /* Not initialized. */
+ if (s->protocol == NULL)
+ return;
+
WARN_ON(amdtp_stream_running(s));
kfree(s->protocol);
mutex_destroy(&s->mutex);