From 2c0b2b484b164072ba6cf52af1bde85158fc75d4 Mon Sep 17 00:00:00 2001
From: Charles Han <hanchunchao@inspur.com>
Date: Wed, 25 Sep 2024 16:00:30 +0800
Subject: [PATCH] ASoC: intel: sof_sdw: Add check devm_kasprintf() returned
value
devm_kasprintf() can return a NULL pointer on failure but this
returned value is not checked.
Fixes: b359760d95ee ("ASoC: intel: sof_sdw: Add simple DAI link creation helper")
Signed-off-by: Charles Han <hanchunchao@inspur.com>
Link: https://patch.msgid.link/20240925080030.11262-1-hanchunchao@inspur.com
Signed-off-by: Mark Brown <broonie@kernel.org>
---
sound/soc/intel/boards/sof_sdw.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/sound/soc/intel/boards/sof_sdw.c b/sound/soc/intel/boards/sof_sdw.c
index 5196d96f5c0e8..35d707d3ae9c7 100644
--- a/sound/soc/intel/boards/sof_sdw.c
+++ b/sound/soc/intel/boards/sof_sdw.c
@@ -800,6 +800,9 @@ static int create_ssp_dailinks(struct snd_soc_card *card,
char *cpu_dai_name = devm_kasprintf(dev, GFP_KERNEL, "SSP%d Pin", i);
char *codec_name = devm_kasprintf(dev, GFP_KERNEL, "i2c-%s:0%d",
ssp_info->acpi_id, j++);
+ if (!name || !cpu_dai_name || !codec_name)
+ return -ENOMEM;
+
int playback = ssp_info->dais[0].direction[SNDRV_PCM_STREAM_PLAYBACK];
int capture = ssp_info->dais[0].direction[SNDRV_PCM_STREAM_CAPTURE];
@@ -866,6 +869,9 @@ static int create_hdmi_dailinks(struct snd_soc_card *card,
for (i = 0; i < hdmi_num; i++) {
char *name = devm_kasprintf(dev, GFP_KERNEL, "iDisp%d", i + 1);
char *cpu_dai_name = devm_kasprintf(dev, GFP_KERNEL, "iDisp%d Pin", i + 1);
+ if (!name || !cpu_dai_name)
+ return -ENOMEM;
+
char *codec_name, *codec_dai_name;
if (intel_ctx->hdmi.idisp_codec) {
@@ -877,6 +883,9 @@ static int create_hdmi_dailinks(struct snd_soc_card *card,
codec_dai_name = "snd-soc-dummy-dai";
}
+ if (!codec_dai_name)
+ return -ENOMEM;
+
ret = asoc_sdw_init_simple_dai_link(dev, *dai_links, be_id, name,
1, 0, // HDMI only supports playback
cpu_dai_name, platform_component->name,
@@ -900,6 +909,9 @@ static int create_bt_dailinks(struct snd_soc_card *card,
SOF_BT_OFFLOAD_SSP_SHIFT;
char *name = devm_kasprintf(dev, GFP_KERNEL, "SSP%d-BT", port);
char *cpu_dai_name = devm_kasprintf(dev, GFP_KERNEL, "SSP%d Pin", port);
+ if (!name || !cpu_dai_name)
+ return -ENOMEM;
+
int ret;
ret = asoc_sdw_init_simple_dai_link(dev, *dai_links, be_id, name,
--
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