ASoC: topology: use kmemdup rather than duplicating its implementation

The patch was generated using fixed coccinelle semantic patch
scripts/coccinelle/api/memdup.cocci [1].

[1]: http://permalink.gmane.org/gmane.linux.kernel/2014320

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/soc-topology.c

@@ -832,12 +832,12 @@ static int soc_tplg_denum_create_values(struct soc_enum *se,
 	if (ec->items > sizeof(*ec->values))
 		return -EINVAL;
 
-	se->dobj.control.dvalues =
-		kmalloc(ec->items * sizeof(u32), GFP_KERNEL);
+	se->dobj.control.dvalues = kmemdup(ec->values,
+					   ec->items * sizeof(u32),
+					   GFP_KERNEL);
 	if (!se->dobj.control.dvalues)
 		return -ENOMEM;
 
-	memcpy(se->dobj.control.dvalues, ec->values, ec->items * sizeof(u32));
 	return 0;
 }