[PATCH] ASoC: Intel: sof_sdw: Add NULL check in asoc_sdw_rt_dmic_rtd_init()

[Chenyuan Yang]

mic_name returned by devm_kasprintf() could be NULL.
Add a check for it.

Signed-off-by: Chenyuan Yang <chenyuan0y@xxxxxxxxx>
Fixes: bee2fe44679f ("ASoC: Intel: sof_sdw: use generic rtd_init function for Realtek SDW DMICs")
---
 sound/soc/sdw_utils/soc_sdw_rt_dmic.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/soc/sdw_utils/soc_sdw_rt_dmic.c b/sound/soc/sdw_utils/soc_sdw_rt_dmic.c
index 46d917a99c51..97be110a59b6 100644
--- a/sound/soc/sdw_utils/soc_sdw_rt_dmic.c
+++ b/sound/soc/sdw_utils/soc_sdw_rt_dmic.c
@@ -29,6 +29,8 @@ int asoc_sdw_rt_dmic_rtd_init(struct snd_soc_pcm_runtime *rtd, struct snd_soc_da
 		mic_name = devm_kasprintf(card->dev, GFP_KERNEL, "rt715-sdca");
 	else
 		mic_name = devm_kasprintf(card->dev, GFP_KERNEL, "%s", component->name_prefix);
+	if (!mic_name)
+		return -ENOMEM;
 
 	card->components = devm_kasprintf(card->dev, GFP_KERNEL,
 					  "%s mic:%s", card->components,
-- 
2.34.1