[ALSA] Conversions from kmalloc+memset to k(z|c)alloc

sound: Conversions from kmalloc+memset to k(c|z)alloc.

Signed-off-by: Panagiotis Issaris <takis@issaris.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>

sound/ppc/tumbler.c

@@ -1316,10 +1316,9 @@ int __init snd_pmac_tumbler_init(struct snd_pmac *chip)
 		request_module("i2c-powermac");
 #endif /* CONFIG_KMOD */	
 
-	mix = kmalloc(sizeof(*mix), GFP_KERNEL);
+	mix = kzalloc(sizeof(*mix), GFP_KERNEL);
 	if (! mix)
 		return -ENOMEM;
-	memset(mix, 0, sizeof(*mix));
 	mix->headphone_irq = -1;
 
 	chip->mixer_data = mix;