From: Mark Brown <broonie@kernel.org>
Date: Mon, 20 Jul 2015 17:14:12 +0000 (+0100)
Subject: Merge branch 'fix/rt5645' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie... 
X-Git-Tag: next-20150824~60^2~19^2~1
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=2c23b0c10f64335031781cf78fd57aae072e9372;p=uclinux-h8%2Flinux.git

Merge branch 'fix/rt5645' of git://git./linux/kernel/git/broonie/sound into asoc-rt5645
---

2c23b0c10f64335031781cf78fd57aae072e9372
diff --cc sound/soc/codecs/rt5645.c
index 5f5d8adf6f42,e9cc3aae5366..19392b13bd5b
--- a/sound/soc/codecs/rt5645.c
+++ b/sound/soc/codecs/rt5645.c
@@@ -2925,8 -2913,39 +2925,11 @@@ static void rt5645_jack_detect_work(str
  {
  	struct rt5645_priv *rt5645 =
  		container_of(work, struct rt5645_priv, jack_detect_work.work);
 -
 -	rt5645_irq_detection(rt5645);
 -}
 -
 -static irqreturn_t rt5645_irq(int irq, void *data)
 -{
 -	struct rt5645_priv *rt5645 = data;
 -
 -	queue_delayed_work(system_power_efficient_wq,
 -			   &rt5645->jack_detect_work, msecs_to_jiffies(250));
 -
 -	return IRQ_HANDLED;
 -}
 -
 -static int rt5645_button_detect(struct snd_soc_codec *codec)
 -{
 -	int btn_type, val;
 -
 -	val = snd_soc_read(codec, RT5650_4BTN_IL_CMD1);
 -	pr_debug("val=0x%x\n", val);
 -	btn_type = val & 0xfff0;
 -	snd_soc_write(codec, RT5650_4BTN_IL_CMD1, val);
 -
 -	return btn_type;
 -}
 -
 -static int rt5645_irq_detection(struct rt5645_priv *rt5645)
 -{
  	int val, btn_type, gpio_state = 0, report = 0;
  
+ 	if (!rt5645->codec)
+ 		return -EINVAL;
+ 
  	switch (rt5645->pdata.jd_mode) {
  	case 0: /* Not using rt5645 JD */
  		if (rt5645->gpiod_hp_det) {