Index: uspace/lib/drv/generic/remote_audio_pcm.c
===================================================================
--- uspace/lib/drv/generic/remote_audio_pcm.c	(revision b66d43bf6f27efa70c9fc7b0113fcc4c4793d46e)
+++ uspace/lib/drv/generic/remote_audio_pcm.c	(revision 6bd0216b277d44921353ef8eaaab4fb4188379c9)
@@ -645,5 +645,4 @@
 	if (sess == NULL) {
 		ddf_msg(LVL_DEBUG, "Failed to create event callback");
-		pcm_iface->release_buffer(fun);
 		async_answer_0(callback_id, EAGAIN);
 		return;
@@ -652,5 +651,4 @@
 	if (ret != EOK) {
 		ddf_msg(LVL_DEBUG, "Failed to set event callback.");
-		pcm_iface->release_buffer(fun);
 		async_hangup(sess);
 		async_answer_0(callback_id, ret);