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ASoC: qcom: Fix NULL Dereference in asoc_qcom_lpass_cpu_platform_probe()

Message ID 20241001210209.2554-1-zichenxie0106@gmail.com
State Accepted
Commit 49da1463c9e3d2082276c3e0e2a8b65a88711cd2
Headers show
Series ASoC: qcom: Fix NULL Dereference in asoc_qcom_lpass_cpu_platform_probe() | expand

Commit Message

Gax-c Oct. 1, 2024, 9:02 p.m. UTC 
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>
Cc: stable@vger.kernel.org
Reported-by: Zichen Xie <zichenxie0106@gmail.com>
---
 sound/soc/qcom/lpass-cpu.c | 2 ++
 1 file changed, 2 insertions(+)
diff mbox series

Patch

diff --git a/sound/soc/qcom/lpass-cpu.c b/sound/soc/qcom/lpass-cpu.c
index 5a47f661e0c6..242bc16da36d 100644
--- a/sound/soc/qcom/lpass-cpu.c
+++ b/sound/soc/qcom/lpass-cpu.c
@@ -1242,6 +1242,8 @@  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,