pcm: more state checking in pcm_get_htimestamp()

pcm_get_htimestamp() should return an error if stream state is not
running or draining as the time stamp returned by the driver is not
valid in other states.

Change-Id: Icdfe9554b26f57119d7a8d762a6ea6e8e3eaf370

1 files changed, 2 insertions, 1 deletions

diff --git a/pcm.c b/pcm.c
index 461eb5a..010d054 100644
--- a/pcm.c
+++ b/pcm.c
@@ -333,7 +333,8 @@ int pcm_get_htimestamp(struct pcm *pcm, unsigned int *avail,
     if (rc < 0)
         return -1;
 
-    if (pcm->mmap_status->state == PCM_STATE_XRUN)
+    if ((pcm->mmap_status->state != PCM_STATE_RUNNING) &&
+            (pcm->mmap_status->state != PCM_STATE_DRAINING))
         return -1;
 
     *tstamp = pcm->mmap_status->tstamp;