audio: pcm error type propagation

- On pcm driver error,error type is not propgating
  from tinyalsa

- Modified oops API to return exact error no

Change-Id: I60ae81445e865201c2425ab600b4abeaab6b560c

1 files changed, 1 insertions, 1 deletions

diff --git a/pcm.c b/pcm.c
index f0477e6..b941796 100644
--- a/pcm.c
+++ b/pcm.c
@@ -198,7 +198,7 @@ static int oops(struct pcm *pcm, int e, const char *fmt, ...)
     if (errno)
         snprintf(pcm->error + sz, PCM_ERROR_MAX - sz,
                  ": %s", strerror(e));
-    return -1;
+    return -errno;
 }
 
 static unsigned int pcm_format_to_alsa(enum pcm_format format)