Re: [PATCH][next] ASoC: qcom: add missing out of memory check on drvdata->clks allocation

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On 8/19/2020 9:31 PM, Colin King wrote:
From: Colin Ian King <colin.king@xxxxxxxxxxxxx>

Currently drvdata->clks is not being checked for an allocation failure,
leading to potential null pointer dereferencing. Fix this by adding a
check and returning -ENOMEM if an error occurred.

Addresses-Coverity: ("Dereference null return value")
Fixes: 1220f6a76e77 ("ASoC: qcom: Add common array to initialize soc based core clocks")
Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
---

Thanks for the fix.

Reviewed-by: Rohit kumar <rohitkr@xxxxxxxxxxxxxx>

  sound/soc/qcom/lpass-apq8016.c | 2 ++
  1 file changed, 2 insertions(+)

diff --git a/sound/soc/qcom/lpass-apq8016.c b/sound/soc/qcom/lpass-apq8016.c
index dd9e3dd014f6..5c8ae225cd5d 100644
--- a/sound/soc/qcom/lpass-apq8016.c
+++ b/sound/soc/qcom/lpass-apq8016.c
@@ -168,6 +168,8 @@ static int apq8016_lpass_init(struct platform_device *pdev)
drvdata->clks = devm_kcalloc(dev, variant->num_clks,
  				     sizeof(*drvdata->clks), GFP_KERNEL);
+	if (!drvdata->clks)
+		return -ENOMEM;
  	drvdata->num_clks = variant->num_clks;
for (i = 0; i < drvdata->num_clks; i++)

--
Qualcomm INDIA, on behalf of Qualcomm Innovation Center, Inc.is a member
of the Code Aurora Forum, hosted by the Linux Foundation.




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