[PATCH 6.1 134/137] ASoC: qcom: Fix NULL Dereference in asoc_qcom_lpass_cpu_platform_probe()

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6.1-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Zichen Xie <zichenxie0106@xxxxxxxxx>

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: b5022a36d28f ("ASoC: qcom: lpass: Use regmap_field for i2sctl and dmactl registers")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Zichen Xie <zichenxie0106@xxxxxxxxx>
Link: https://patch.msgid.link/20241006205737.8829-1-zichenxie0106@xxxxxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 sound/soc/qcom/lpass-cpu.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/sound/soc/qcom/lpass-cpu.c
+++ b/sound/soc/qcom/lpass-cpu.c
@@ -1236,6 +1236,8 @@ int asoc_qcom_lpass_cpu_platform_probe(s
 	/* 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,






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