ASoC: skl-topology: Use kmemdup to replace kzalloc + memcpy

xiongzhongjiang · broonie · commit ca92cc4636fd · 2018-09-10T15:20:20.000+01:00
kmemdup has implemented the function that kzalloc() + memcpy() will
do. and we prefer to kmemdup rather than the open coded implementation.

Signed-off-by: zhong jiang &lt;zhongjiang@huawei.com&gt;
Signed-off-by: Mark Brown &lt;broonie@kernel.org&gt;
diff --git a/sound/soc/intel/skylake/skl-topology.c b/sound/soc/intel/skylake/skl-topology.c
@@ -898,11 +898,10 @@ static int skl_tplg_set_module_bind_params(struct snd_soc_dapm_widget *w,
 			bc = (struct skl_algo_data *)sb->dobj.private;
 
 			if (bc->set_params == SKL_PARAM_BIND) {
-				params = kzalloc(bc->max, GFP_KERNEL);
+				params = kmemdup(bc->params, bc->max, GFP_KERNEL);
 				if (!params)
 					return -ENOMEM;
 
-				memcpy(params, bc->params, bc->max);
 				skl_fill_sink_instance_id(ctx, params, bc->max,
 								mconfig);
 
