| Message ID | 20241001002409.11989-1-zichenxie0106@gmail.com |
|---|---|
| State | Superseded |
| Headers | show |
| Series | ASoC: qcom: Fix NULL Dereference in asoc_qcom_lpass_cpu_platform_probe() | expand |
On 01/10/2024 02:24, Gax-c wrote: > 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: b5022a36d28f ("ASoC: qcom: lpass: Use regmap_field for i2sctl and dmactl registers") > Signed-off-by: Zichen Xie <zichenxie0106@gmail.com> > Reported-by: Zichen Xie <zichenxie0106@gmail.com> > Reported-by: Zijie Zhao <zzjas98@gmail.com> > Reported-by: Chenyuan Yang <chenyuan0y@gmail.com> Commit still needs improvements. You ignored also Bjorn's review. Best regards, Krzysztof
diff --git a/sound/soc/qcom/lpass-cpu.c b/sound/soc/qcom/lpass-cpu.c index 5a47f661e0c6..a8e56f47f237 100644 --- a/sound/soc/qcom/lpass-cpu.c +++ b/sound/soc/qcom/lpass-cpu.c @@ -1243,6 +1243,9 @@ int asoc_qcom_lpass_cpu_platform_probe(struct platform_device *pdev) 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, drvdata->lpaif_map);
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: b5022a36d28f ("ASoC: qcom: lpass: Use regmap_field for i2sctl and dmactl registers") Signed-off-by: Zichen Xie <zichenxie0106@gmail.com> Reported-by: Zichen Xie <zichenxie0106@gmail.com> Reported-by: Zijie Zhao <zzjas98@gmail.com> Reported-by: Chenyuan Yang <chenyuan0y@gmail.com> --- sound/soc/qcom/lpass-cpu.c | 3 +++ 1 file changed, 3 insertions(+)