linux-kernel - Re: [PATCH] staging: rtl8192u: fix large frame size compiler warning

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Message-ID: <20151217110435.GG5284@mwanda>
Date:	Thu, 17 Dec 2015 14:04:35 +0300
From:	Dan Carpenter <dan.carpenter@...cle.com>
To:	Okash Khawaja <okash.khawaja@...il.com>
Cc:	gregkh@...uxfoundation.org, devel@...verdev.osuosl.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] staging: rtl8192u: fix large frame size compiler warning

Put a v3 in the subject.

There are still paths where this is not freed, so we need a v4.  Take
your time, there is no rush.

>  drivers/staging/rtl8192u/ieee80211/ieee80211_rx.c | 15 ++++++++++++++-
>  1 file changed, 14 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_rx.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_rx.c
> index 130c852..77eed52 100644
> --- a/drivers/staging/rtl8192u/ieee80211/ieee80211_rx.c
> +++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_rx.c
> @@ -594,12 +594,22 @@ static void RxReorderIndicatePacket(struct ieee80211_device *ieee,
>  {
>  	PRT_HIGH_THROUGHPUT	pHTInfo = ieee->pHTInfo;
>  	PRX_REORDER_ENTRY	pReorderEntry = NULL;
> -	struct ieee80211_rxb *prxbIndicateArray[REORDER_WIN_SIZE];
> +	struct ieee80211_rxb **prxbIndicateArray;
>  	u8			WinSize = pHTInfo->RxReorderWinSize;
>  	u16			WinEnd = (pTS->RxIndicateSeq + WinSize -1)%4096;
>  	u8			index = 0;
>  	bool			bMatchWinStart = false, bPktInBuf = false;
>  	IEEE80211_DEBUG(IEEE80211_DL_REORDER,"%s(): Seq is %d,pTS->RxIndicateSeq is %d, WinSize is %d\n",__func__,SeqNum,pTS->RxIndicateSeq,WinSize);
> +
> +	prxbIndicateArray = kmalloc(sizeof(struct ieee80211_rxb *) *
> +			REORDER_WIN_SIZE, GFP_KERNEL);
> +	if (!prxbIndicateArray) {
> +		IEEE80211_DEBUG(IEEE80211_DL_ERR,
> +				"%s(): kmalloc prxbIndicateArray error\n",
> +				__func__);

Don't print an error if kmalloc() fails.  kmalloc has its own message.

> +		return;
> +	}

regards,
dan carpenter

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