diff --git a/ap/lib/libvoice/alsa_call.c b/ap/lib/libvoice/alsa_call.c
index 72f82ce..37a4820 100755
--- a/ap/lib/libvoice/alsa_call.c
+++ b/ap/lib/libvoice/alsa_call.c
@@ -123,8 +123,10 @@
 	
 	}
     /* open mixer dev for codec control */
-    if(!(voice_mixer = mixer_open(0))) 
+    if(!(voice_mixer = mixer_open(0))) {
        printf("mixer open fail, file(%s), line(%d)\n", __FILE__, __LINE__);
+       return -2;
+    }
 
 
 	if(T_OUTPUT_SPEAKER == current_chanl) {
@@ -155,6 +157,7 @@
 	else
 	{
 		printf("alsa_voice_open: chanl not support fail!\n");
+        mixer_close(voice_mixer);
 		return -2;
 
 	}