ASoC: sigmadsp: switch to use kmemdup_nul() helper

Use kmemdup_nul() helper instead of open-coding to
simplify the code.

Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20220825123525.1845695-1-yangyingliang@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/codecs/sigmadsp.c b/sound/soc/codecs/sigmadsp.c
index b992216..3047a6f 100644 (file)
--- a/sound/soc/codecs/sigmadsp.c
+++ b/sound/soc/codecs/sigmadsp.c
@@ -227,13 +227,11 @@ static int sigma_fw_load_control(struct sigmadsp *sigmadsp,
        if (!ctrl)
                return -ENOMEM;
 
-       name = kzalloc(name_len + 1, GFP_KERNEL);
+       name = kmemdup_nul(ctrl_chunk->name, name_len, GFP_KERNEL);
        if (!name) {
                ret = -ENOMEM;
                goto err_free_ctrl;
        }
-       memcpy(name, ctrl_chunk->name, name_len);
-       name[name_len] = '\0';
        ctrl->name = name;
 
        /*