linux-kernel - Re: [PATCH v2] staging: r8188eu: add check for kzalloc

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Message-ID: <20220518064959.GP29930@kadam>
Date:   Wed, 18 May 2022 09:49:59 +0300
From:   Dan Carpenter <dan.carpenter@...cle.com>
To:     Jiasheng Jiang <jiasheng@...as.ac.cn>
Cc:     Larry.Finger@...inger.net, phil@...lpotter.co.uk,
        gregkh@...uxfoundation.org, straube.linux@...il.com,
        fmdefrancesco@...il.com, linux-staging@...ts.linux.dev,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] staging: r8188eu: add check for kzalloc

On Wed, May 18, 2022 at 02:30:24PM +0800, Jiasheng Jiang wrote:
> diff --git a/drivers/staging/r8188eu/core/rtw_xmit.c b/drivers/staging/r8188eu/core/rtw_xmit.c
> index c2a550e7250e..0b3bcfbf22f7 100644
> --- a/drivers/staging/r8188eu/core/rtw_xmit.c
> +++ b/drivers/staging/r8188eu/core/rtw_xmit.c
> @@ -178,7 +178,10 @@ s32	_rtw_init_xmit_priv(struct xmit_priv *pxmitpriv, struct adapter *padapter)
>  
>  	pxmitpriv->free_xmit_extbuf_cnt = num_xmit_extbuf;
>  
> -	rtw_alloc_hwxmits(padapter);
> +	res = rtw_alloc_hwxmits(padapter);
> +	if (res)
> +		goto exit;

Unfortunately this needs to be:

	if (res) {
		res = _FAIL;
		goto exit;
	}

Eventually someone will get rid of the _FAIL garbage but for now the
caller expects it.

regards,
dan carpenter