xmms plugin: Return `-1' when values could be read but are weird.

diff --git a/src/xmms.c b/src/xmms.c
index 238a8ee..1e646d2 100644 (file)
--- a/src/xmms.c
+++ b/src/xmms.c
@@ -55,7 +55,7 @@ int cxmms_read (void)
   xmms_remote_get_info (xmms_session, &rate, &freq, &nch);
 
   if ((freq == 0) || (nch == 0))
-    return (0);
+    return (-1);
 
   cxmms_submit ("bitrate", rate);
   cxmms_submit ("frequency", freq);