tree ddc9b9f01bf3d1add626946c47f88fb0c6ef6496
parent c4625f3391535fa8f6a4bf6b230f08eb13b17a5c
author Vidyakumar Athota <vathota@codeaurora.org> 1502221959 -0700
committer Garmond Leung <garmondl@codeaurora.org> 1505344467 -0700

hal: return error if QAF session/stream is NULL

To stop the playback and handle appropriately, return error
to application if QAF session/stream is NULL.

Change-Id: I7ca7055e029e07c7a430f3d75bb0b3b12bd972e7