linux-kernel - [PATCH 5.16 0351/1017] ASoC: acp: check the return value of devm_kzalloc() in acp_legacy_dai_links

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Message-Id: <20220405070404.701631180@linuxfoundation.org>
Date:   Tue,  5 Apr 2022 09:21:04 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, TOTE Robot <oslab@...nghua.edu.cn>,
        Jia-Ju Bai <baijiaju1990@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.16 0351/1017] ASoC: acp: check the return value of devm_kzalloc() in acp_legacy_dai_links_create()

From: Jia-Ju Bai <baijiaju1990@...il.com>

[ Upstream commit 431f9a77a4a62694ce90742d1f4c5abe1b8b6612 ]

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@...nghua.edu.cn>
Signed-off-by: Jia-Ju Bai <baijiaju1990@...il.com>
Link: https://lore.kernel.org/r/20220225131645.27556-1-baijiaju1990@gmail.com
Signed-off-by: Mark Brown <broonie@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 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 7785f12aa006..55ad3c70f0ef 100644
--- a/sound/soc/amd/acp/acp-mach-common.c
+++ b/sound/soc/amd/acp/acp-mach-common.c
@@ -531,6 +531,8 @@ 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";
-- 
2.34.1