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ASoC: qcom: Fix NULL Dereference in asoc_qcom_lpass_cpu_platform_probe() 

commit 49da1463c9e3d2082276c3e0e2a8b65a88711cd2 upstream.

A devm_kzalloc() in asoc_qcom_lpass_cpu_platform_probe() could
possibly return NULL pointer. NULL Pointer Dereference may be
triggerred without addtional check.
Add a NULL check for the returned pointer.

Fixes: b5022a36d2 ("ASoC: qcom: lpass: Use regmap_field for i2sctl and dmactl registers")
Cc: stable@vger.kernel.org
Signed-off-by: Zichen Xie <zichenxie0106@gmail.com>
Link: https://patch.msgid.link/20241006205737.8829-1-zichenxie0106@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Zichen Xie 2024-10-06 15:57:37 -05:00 committed by Greg Kroah-Hartman
parent 24f638125c
commit 73cc3f905c
1 changed files with 2 additions and 0 deletions
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2
sound/soc/qcom/lpass-cpu.c
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@ -1246,6 +1246,8 @@ int asoc_qcom_lpass_cpu_platform_probe(struct platform_device *pdev)
/* Allocation for i2sctl regmap fields */
drvdata->i2sctl = devm_kzalloc(&pdev->dev, sizeof(struct lpaif_i2sctl),
GFP_KERNEL);
if (!drvdata->i2sctl)
return -ENOMEM;
/* Initialize bitfields for dai I2SCTL register */
ret = lpass_cpu_init_i2sctl_bitfields(dev, drvdata->i2sctl,