Index: uspace/lib/drv/generic/remote_audio_pcm.c
===================================================================
--- uspace/lib/drv/generic/remote_audio_pcm.c	(revision 6606378f95713c7db8f7b4c99d6126e8a0b47885)
+++ uspace/lib/drv/generic/remote_audio_pcm.c	(revision 5ae1c51758b0e7f1201875571f58aaefc96cffbb)
@@ -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);