linux-kernel - Re: [PATCH] staging: rtl8192e: check return value of dev_skb

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Message-ID: <20140619024555.GA30672@kroah.com>
Date:	Wed, 18 Jun 2014 19:45:55 -0700
From:	Greg KH <gregkh@...uxfoundation.org>
To:	Nicholas Krause <xerofoify@...il.com>
Cc:	devel@...verdev.osuosl.org, ben@...adent.org.uk,
	lisa@...apiadmin.com, valentina.manea.m@...il.com,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] staging: rtl8192e: check return value of dev_skb_alloc

On Wed, Jun 18, 2014 at 10:24:41PM -0400, Nicholas Krause wrote:
> Checks if dev_skb_alloc returns Null in function, fw_download_code.
> If the return value of dev_skb_alloc is NULL return false and exit
> this function.
> Signed-off-by: Nicholas Krause <xerofoify@...il.com>
> ---
>  drivers/staging/rtl8192e/rtl8192e/r8192E_firmware.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/staging/rtl8192e/rtl8192e/r8192E_firmware.c b/drivers/staging/rtl8192e/rtl8192e/r8192E_firmware.c
> index 1a95d1f..38ae236 100644
> --- a/drivers/staging/rtl8192e/rtl8192e/r8192E_firmware.c
> +++ b/drivers/staging/rtl8192e/rtl8192e/r8192E_firmware.c
> @@ -62,6 +62,8 @@ static bool fw_download_code(struct net_device *dev, u8 *code_virtual_address,
>  
>  		skb  = dev_alloc_skb(frag_length + 4);
>  		memcpy((unsigned char *)(skb->cb), &dev, sizeof(dev));
> +		if (!skb)
> +			return !rt_status;
>  		tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
>  		tcb_desc->queue_index = TXCMD_QUEUE;
>  		tcb_desc->bCmdOrInit = DESC_PACKET_TYPE_INIT;

As writing emails to you seems like dumping stuff into a vacuum, I'm
going to just delete this message and start ignoring your mail like you
seem to be ignoring mine...

Best of luck,

greg k-h
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