linux-kernel - Re: [PATCH 6/9] ser_gigaset: checkpatch cleanup

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Message-ID: <4AE4E11A.7000303@imap.cc>
Date:	Mon, 26 Oct 2009 00:36:58 +0100
From:	Tilman Schmidt <tilman@...p.cc>
To:	unlisted-recipients:; (no To-header on input)
CC:	David Miller <davem@...emloft.net>,
	Karsten Keil <isdn@...ux-pingi.de>,
	Hansjoerg Lipp <hjlipp@....de>, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, isdn4linux@...tserv.isdn4linux.de,
	i4ldeveloper@...tserv.isdn4linux.de
Subject: Re: [PATCH 6/9] ser_gigaset: checkpatch cleanup

Alan Cox schrieb:

>> -		if (!(bcs->tx_skb = skb_dequeue(&bcs->squeue)))
>> +		nextskb = skb_dequeue(&bcs->squeue);
>> +		if (!nextskb)
>>  			/* no skb either, nothing to do */
>>  			return;
>> +		bcs->tx_skb = nextskb;
> 
> This does not do the same thing as before
> 
> Previously the NULL case assigned to bcs->tx_skb, now it does not.

bcs->tx_skb is guaranteed to be NULL already at this point because
of the enclosing "if (!bcs->tx_skb)".

Thanks,
Tilman

-- 
Tilman Schmidt                    E-Mail: tilman@...p.cc
Bonn, Germany
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