ASoC: Intel: sof_sdw: Add NULL check in asoc_sdw_rt_dmic_rtd_init()

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

Signed-off-by: Chenyuan Yang <chenyuan0y@gmail.com>
Fixes: bee2fe44679f ("ASoC: Intel: sof_sdw: use generic rtd_init function for Realtek SDW DMICs")
Link: https://patch.msgid.link/20250415194134.292830-1-chenyuan0y@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/sdw_utils/soc_sdw_rt_dmic.c b/sound/soc/sdw_utils/soc_sdw_rt_dmic.c
index 46d917a99c51dab90d28b12c4646ed7862dc0044..97be110a59b63a96724a76ddb40573e3c9dc2b26 100644 (file)
--- 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,