From 827d316dcecff69073cc7d74c8ca4826308f78a8 Mon Sep 17 00:00:00 2001
From: Juha Niskanen <juha.niskanen@haltian.com>
Date: Wed, 29 Aug 2018 06:19:19 -0600
Subject: [PATCH] drivers/audio/audio_i2s.c: Fix bad NULL pointer check

---
 drivers/audio/audio_i2s.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/audio/audio_i2s.c b/drivers/audio/audio_i2s.c
index 63a2dc84bb..6e1112e107 100644
--- a/drivers/audio/audio_i2s.c
+++ b/drivers/audio/audio_i2s.c
@@ -231,11 +231,12 @@ static int audio_i2s_configure(FAR struct audio_lowerhalf_s *dev,
 #endif
 {
   FAR struct audio_i2s_s *audio_i2s = (struct audio_i2s_s *)dev;
-  FAR struct i2s_dev_s *i2s = audio_i2s->i2s;
+  FAR struct i2s_dev_s *i2s;
   int samprate, nchannels, bpsamp;
   int ret = OK;
 
-  DEBUGASSERT(audio_i2s && caps);
+  DEBUGASSERT(audio_i2s != NULL && caps != NULL);
+  i2s = audio_i2s->i2s;
   audinfo("ac_type: %d\n", caps->ac_type);
 
   /* Process the configure operation */