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From: Greg KH <gregkh@linuxfoundation.org>
To: "Zhang, Qiang" <Qiang.Zhang@windriver.com>
Cc: "balbi@kernel.org" <balbi@kernel.org>,
	"linux-usb@vger.kernel.org" <linux-usb@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: 回复: [PATCH v2] usb: gadget: function: printer: fix use-after-free in __lock_acquire
Date: Tue, 9 Jun 2020 11:48:48 +0200	[thread overview]
Message-ID: <20200609094848.GA533476@kroah.com> (raw)
In-Reply-To: <DM5PR11MB2058F82DF00D26338119BF0FFF820@DM5PR11MB2058.namprd11.prod.outlook.com>


A: http://en.wikipedia.org/wiki/Top_post
Q: Were do I find info about this thing called top-posting?
A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
Q: What is the most annoying thing in e-mail?

A: No.
Q: Should I include quotations after my reply?

http://daringfireball.net/2007/07/on_top

On Tue, Jun 09, 2020 at 09:35:11AM +0000, Zhang, Qiang wrote:
> Thank you for your suggestion
> two referenced counted objects in the same exact structure. another  referenced is
> "dev->printer_cdev_open"?

Maybe, I don't know, but a cdev does have a reference count already,
right?  Why do you need printer_cdev_open as well?

thanks,

greg k-h

  reply	other threads:[~2020-06-09  9:48 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-08  7:16 qiang.zhang
2020-06-08  7:33 ` Greg KH
2020-06-09  9:35   ` 回复: " Zhang, Qiang
2020-06-09  9:48     ` Greg KH [this message]
2020-06-10  4:58       ` 回复: " Zhang, Qiang
2020-06-18  8:28         ` Greg KH

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