diff options
| author | Claudiu Beznea <claudiu.beznea@microchip.com> | 2023-06-14 15:15:09 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2023-06-19 12:59:27 +0100 |
| commit | 2f76e1d6ca524a888d29aafe29f2ad2003857971 (patch) | |
| tree | a8ab70d6c6948ea3585e0b64a73038f39cf0b8ef | |
| parent | 997905d523fb85ba1a45159cbb9ae3910275bada (diff) | |
| download | lwn-2f76e1d6ca524a888d29aafe29f2ad2003857971.tar.gz lwn-2f76e1d6ca524a888d29aafe29f2ad2003857971.zip | |
ASoC: imx-audmix: check return value of devm_kasprintf()
devm_kasprintf() returns a pointer to dynamically allocated memory.
Pointer could be NULL in case allocation fails. Check pointer validity.
Identified with coccinelle (kmerr.cocci script).
Fixes: b86ef5367761 ("ASoC: fsl: Add Audio Mixer machine driver")
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/20230614121509.443926-1-claudiu.beznea@microchip.com
Signed-off-by: Mark Brown <broonie@kernel.org>
| -rw-r--r-- | sound/soc/fsl/imx-audmix.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/sound/soc/fsl/imx-audmix.c b/sound/soc/fsl/imx-audmix.c index c93616e50f4d..0b58df56f4da 100644 --- a/sound/soc/fsl/imx-audmix.c +++ b/sound/soc/fsl/imx-audmix.c @@ -227,6 +227,8 @@ static int imx_audmix_probe(struct platform_device *pdev) dai_name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "%s%s", fe_name_pref, args.np->full_name + 1); + if (!dai_name) + return -ENOMEM; dev_info(pdev->dev.parent, "DAI FE name:%s\n", dai_name); @@ -235,6 +237,8 @@ static int imx_audmix_probe(struct platform_device *pdev) capture_dai_name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "%s %s", dai_name, "CPU-Capture"); + if (!capture_dai_name) + return -ENOMEM; } /* @@ -266,6 +270,8 @@ static int imx_audmix_probe(struct platform_device *pdev) "AUDMIX-Playback-%d", i); be_cp = devm_kasprintf(&pdev->dev, GFP_KERNEL, "AUDMIX-Capture-%d", i); + if (!be_name || !be_pb || !be_cp) + return -ENOMEM; priv->dai[num_dai + i].cpus = &dlc[1]; priv->dai[num_dai + i].codecs = &asoc_dummy_dlc; @@ -288,6 +294,9 @@ static int imx_audmix_probe(struct platform_device *pdev) priv->dapm_routes[i].source = devm_kasprintf(&pdev->dev, GFP_KERNEL, "%s %s", dai_name, "CPU-Playback"); + if (!priv->dapm_routes[i].source) + return -ENOMEM; + priv->dapm_routes[i].sink = be_pb; priv->dapm_routes[num_dai + i].source = be_pb; priv->dapm_routes[num_dai + i].sink = be_cp; |