ASoC: msm: qdsp6: Print message only when string is not NULL

Solve the crash which may be caused by NULL name in
voc_get_session_id function.

CRs-fixed: 310289
Signed-off-by: Helen Zeng <xiaoyunz@codeaurora.org>
diff --git a/sound/soc/msm/qdsp6/q6voice.c b/sound/soc/msm/qdsp6/q6voice.c
index b287c70..ecfef5b 100644
--- a/sound/soc/msm/qdsp6/q6voice.c
+++ b/sound/soc/msm/qdsp6/q6voice.c
@@ -137,9 +137,10 @@
 			session_id = common.voice[VOC_PATH_PASSIVE].session_id;
 		else
 			session_id = common.voice[VOC_PATH_FULL].session_id;
-	}
 
-	pr_debug("%s: %s has session id 0x%x\n", __func__, name, session_id);
+		pr_debug("%s: %s has session id 0x%x\n", __func__, name,
+				session_id);
+	}
 
 	return session_id;
 }