netdev - 回复: [PATCH v1] drivers:net:dsa:Fix resource leaks in fwnode_for_each_child

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Message-ID:
 <PS1PR0601MB3737C84D2AF397AB8B4E9207BD58A@PS1PR0601MB3737.apcprd06.prod.outlook.com>
Date: Fri, 16 Jun 2023 01:36:43 +0000
From: 王明-软件底层技术部 <machel@...o.com>
To: Vladimir Oltean <olteanv@...il.com>
CC: Andrew Lunn <andrew@...n.ch>, Florian Fainelli <f.fainelli@...il.com>,
	"David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, Stephen
 Rothwell <sfr@...b.auug.org.au>, "netdev@...r.kernel.org"
	<netdev@...r.kernel.org>, "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>, opensource.kernel
	<opensource.kernel@...o.com>
Subject:
 回复: [PATCH v1] drivers:net:dsa:Fix resource leaks in fwnode_for_each_child_node() loops

Okay，thank you ,I will do as you suggest.

-----邮件原件-----
发件人: Vladimir Oltean <olteanv@...il.com> 
发送时间: 2023年6月16日 4:37
收件人: Simon Horman <simon.horman@...igine.com>
抄送: 王明-软件底层技术部 <machel@...o.com>; Andrew Lunn <andrew@...n.ch>; Florian Fainelli <f.fainelli@...il.com>; David S. Miller <davem@...emloft.net>; Eric Dumazet <edumazet@...gle.com>; Jakub Kicinski <kuba@...nel.org>; Paolo Abeni <pabeni@...hat.com>; Stephen Rothwell <sfr@...b.auug.org.au>; netdev@...r.kernel.org; linux-kernel@...r.kernel.org; opensource.kernel <opensource.kernel@...o.com>
主题: Re: [PATCH v1] drivers:net:dsa:Fix resource leaks in fwnode_for_each_child_node() loops

Hi Simon,

On Thu, Jun 15, 2023 at 03:03:15PM +0200, Simon Horman wrote:
> On Thu, Jun 15, 2023 at 03:04:58PM +0800, Wang Ming wrote:
> >  The fwnode_for_each_child_node loop in qca8k_setup_led_ctrl should  
> > have fwnode_handle_put() before return which could avoid resource leaks.
> >  This patch could fix this bug.
> > 
> > Signed-off-by: Wang Ming <machel@...o.com>
> 
> Hi Wang Ming,
> 
> unfortunately your patch has been whitespace mangled - tabs have been 
> converted into 8 spaces. Possibly this was done by your mail client or 
> mail server. In any case the result is that the patch doesn't apply.
> And unfortunately that breaks our processes.
> 
> Also, I'm assuming that as this patch is a fix, it is targeted at the 
> "net", as opposed to "net-next", tree. This should be noted in the subject.
> 
> 	Subject: [PATCH net v2] ...
> 
> Lastly, looking at the git history of qca8k-leds.c, I think that a 
> better prefix for the patch is "net: dsa: qca8k: ".
> 
> 	Subject: [PATCH net v2] net: dsa: qca8k: ...
> 
> Please consider addressing the problems and reposting your patch.
> 
> --
> pw-bot: changes-requested

I think that according to the disclaimer text, you as a subscriber to the mailing list should have deleted this message instead of commenting on it :)

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Seriously now, that has to go when posting to a mailing list whose archives can be seen on the world wide web.
https://lore.kernel.org/netdev/20230615070512.6634-1-machel@vivo.com/

2 comments from my side on the actual patch.

1. There is an indentation of 1 space in the commit message which
   doesn't belong there.

2. I believe that the "ports" fwnode_handle is also leaked, both in the
   error as well as in the success case.

And one more process-related observation. You must find the commit which introduced the problem and add:

Fixes: 1e264f9d2918 ("net: dsa: qca8k: add LEDs basic support")

and also CC the author of that patch.