[ALSA] soc - Clean up with kmemdup()

Clean up by replacing with kmemdup().
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>

sound/soc/codecs/wm8731.c

@@ -543,14 +543,10 @@ static int wm8731_init(struct snd_soc_device *socdev)
 	codec->dapm_event = wm8731_dapm_event;
 	codec->dai = &wm8731_dai;
 	codec->num_dai = 1;
-	codec->reg_cache_size = ARRAY_SIZE(wm8731_reg);
-	codec->reg_cache =
-			kzalloc(sizeof(u16) * ARRAY_SIZE(wm8731_reg), GFP_KERNEL);
+	codec->reg_cache_size = sizeof(wm8731_reg);
+	codec->reg_cache = kmemdup(wm8731_reg, sizeof(wm8731_reg), GFP_KERNEL);
 	if (codec->reg_cache == NULL)
 		return -ENOMEM;
-	memcpy(codec->reg_cache,
-		wm8731_reg, sizeof(u16) * ARRAY_SIZE(wm8731_reg));
-	codec->reg_cache_size = sizeof(u16) * ARRAY_SIZE(wm8731_reg);
 
 	wm8731_reset(codec);
 
@@ -627,12 +623,11 @@ static int wm8731_codec_probe(struct i2c_adapter *adap, int addr, int kind)
 	client_template.adapter = adap;
 	client_template.addr = addr;
 
-	i2c = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
+	i2c = kmemdup(&client_template, sizeof(client_template), GFP_KERNEL);
 	if (i2c == NULL) {
 		kfree(codec);
 		return -ENOMEM;
 	}
-	memcpy(i2c, &client_template, sizeof(struct i2c_client));
 	i2c_set_clientdata(i2c, codec);
 	codec->control_data = i2c;
 

sound/soc/codecs/wm8750.c

@@ -807,15 +807,10 @@ static int wm8750_init(struct snd_soc_device *socdev)
 	codec->dapm_event = wm8750_dapm_event;
 	codec->dai = &wm8750_dai;
 	codec->num_dai = 1;
-	codec->reg_cache_size = ARRAY_SIZE(wm8750_reg);
-
-	codec->reg_cache =
-			kzalloc(sizeof(u16) * ARRAY_SIZE(wm8750_reg), GFP_KERNEL);
+	codec->reg_cache_size = sizeof(wm8750_reg);
+	codec->reg_cache = kmemdup(wm8750_reg, sizeof(wm8750_reg), GFP_KRENEL);
 	if (codec->reg_cache == NULL)
 		return -ENOMEM;
-	memcpy(codec->reg_cache, wm8750_reg,
-		sizeof(u16) * ARRAY_SIZE(wm8750_reg));
-	codec->reg_cache_size = sizeof(u16) * ARRAY_SIZE(wm8750_reg);
 
 	wm8750_reset(codec);
 
@@ -900,12 +895,11 @@ static int wm8750_codec_probe(struct i2c_adapter *adap, int addr, int kind)
 	client_template.adapter = adap;
 	client_template.addr = addr;
 
-	i2c = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
+	i2c = kmemdup(&client_template, sizeof(client_template), GFP_KERNEL);
 	if (i2c == NULL) {
 		kfree(codec);
 		return -ENOMEM;
 	}
-	memcpy(i2c, &client_template, sizeof(struct i2c_client));
 	i2c_set_clientdata(i2c, codec);
 	codec->control_data = i2c;
 

sound/soc/soc-dapm.c

@@ -87,16 +87,10 @@ module_param(dapm_status, int, 0);
 MODULE_PARM_DESC(dapm_status, "enable DPM sysfs entries");
 
 /* create a new dapm widget */
-static struct snd_soc_dapm_widget *dapm_cnew_widget(
+static inline struct snd_soc_dapm_widget *dapm_cnew_widget(
 	const struct snd_soc_dapm_widget *_widget)
 {
-	struct snd_soc_dapm_widget* widget;
-	widget = kmalloc(sizeof(struct snd_soc_dapm_widget), GFP_KERNEL);
-	if (!widget)
-		return NULL;
-
-	memcpy(widget, _widget, sizeof(struct snd_soc_dapm_widget));
-	return widget;
+	return kmemdup(_widget, sizeof(*_widget), GFP_KERNEL);
 }
 
 /* set up initial codec paths */