linux-kernel - Re: [PATCH -next] phy: qcom-qmp: fix invalid use of sizeof in qcom_qmp_phy_vreg

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Message-ID: <02f41a36-d12c-d61a-ff51-f89e609704b5@codeaurora.org>
Date:   Tue, 25 Apr 2017 13:43:50 +0530
From:   Vivek Gautam <vivek.gautam@...eaurora.org>
To:     Wei Yongjun <weiyj.lk@...il.com>,
        Kishon Vijay Abraham I <kishon@...com>
Cc:     Wei Yongjun <weiyongjun1@...wei.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH -next] phy: qcom-qmp: fix invalid use of sizeof in
 qcom_qmp_phy_vreg_init()

Hi,


On 04/25/2017 12:27 PM, Wei Yongjun wrote:
> From: Wei Yongjun <weiyongjun1@...wei.com>
>
> sizeof() when applied to a pointer typed expression gives the
> size of the pointer, not that of the pointed data.
>
> Signed-off-by: Wei Yongjun <weiyongjun1@...wei.com>
> ---

Apparently Kbuild had caught this and sent a similar patch. But I missed
that.

Thank you for the patch. I have requested Kishon to pull in the patch
from Kbuild along with your patch [1] fixing the return value for of_iomap.

[1] https://lkml.org/lkml/2017/4/24/1080

Best Regards
Vivek

>   drivers/phy/phy-qcom-qmp.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/phy/phy-qcom-qmp.c b/drivers/phy/phy-qcom-qmp.c
> index 727e23b..7d6085f 100644
> --- a/drivers/phy/phy-qcom-qmp.c
> +++ b/drivers/phy/phy-qcom-qmp.c
> @@ -844,7 +844,7 @@ static int qcom_qmp_phy_vreg_init(struct device *dev)
>   	int num = qmp->cfg->num_vregs;
>   	int i;
>   
> -	qmp->vregs = devm_kcalloc(dev, num, sizeof(qmp->vregs), GFP_KERNEL);
> +	qmp->vregs = devm_kcalloc(dev, num, sizeof(*qmp->vregs), GFP_KERNEL);
>   	if (!qmp->vregs)
>   		return -ENOMEM;
>

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