[PATCH] ALSA: acp: check the return value of devm_kzalloc() in acp_legacy_dai_links_create()

[Jia-Ju Bai]

The function devm_kzalloc() in acp_legacy_dai_links_create() can fail,
so its return value should be checked.

Fixes: d4c750f2c7d4 ("ASoC: amd: acp: Add generic machine driver support for ACP cards")
Reported-by: TOTE Robot <oslab at tsinghua.edu.cn>
Signed-off-by: Jia-Ju Bai <baijiaju1990 at gmail.com>
---
 sound/soc/amd/acp/acp-mach-common.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/soc/amd/acp/acp-mach-common.c b/sound/soc/amd/acp/acp-mach-common.c
index cd05ee2802c9..5247015e8b31 100644
--- a/sound/soc/amd/acp/acp-mach-common.c
+++ b/sound/soc/amd/acp/acp-mach-common.c
@@ -556,6 +556,8 @@ int acp_legacy_dai_links_create(struct snd_soc_card *card)
 		num_links++;
 
 	links = devm_kzalloc(dev, sizeof(struct snd_soc_dai_link) * num_links, GFP_KERNEL);
+	if (!links)
+		return -ENOMEM;
 
 	if (drv_data->hs_cpu_id == I2S_SP) {
 		links[i].name = "acp-headset-codec";
-- 
2.17.1