[PATCH] ASoC: hdaudio.c: Add missing check for devm_kstrdup

[Chen Ni]

Because of the potential failure of the devm_kstrdup(), the 
dl[i].codecs->name could be NULL.
Therefore, we need to check it and return -ENOMEM in order to transfer
the error.

Fixes: 97030a43371e ("ASoC: Intel: avs: Add HDAudio machine board")
Signed-off-by: Chen Ni <nichen@xxxxxxxxxxx>
---
 sound/soc/intel/avs/boards/hdaudio.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sound/soc/intel/avs/boards/hdaudio.c b/sound/soc/intel/avs/boards/hdaudio.c
index cb00bc86ac94..8876558f19a1 100644
--- a/sound/soc/intel/avs/boards/hdaudio.c
+++ b/sound/soc/intel/avs/boards/hdaudio.c
@@ -55,6 +55,9 @@ static int avs_create_dai_links(struct device *dev, struct hda_codec *codec, int
 			return -ENOMEM;
 
 		dl[i].codecs->name = devm_kstrdup(dev, cname, GFP_KERNEL);
+		if (!dl[i].codecs->name)
+			return -ENOMEM;
+
 		dl[i].codecs->dai_name = pcm->name;
 		dl[i].num_codecs = 1;
 		dl[i].num_cpus = 1;
-- 
2.25.1