linux-kernel - Re: Possible race condition in usb-serial.c

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Message-Id: <200612192113.40102.oliver@neukum.name>
Date:	Tue, 19 Dec 2006 21:15:44 +0100 (MET)
From:	Oliver Neukum <oliver@...kum.name>
To:	J <jhnlmn@...oo.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: Possible race condition in usb-serial.c

Am Dienstag, 19. Dezember 2006 20:21 schrieb J:
> Hi,
> I read usb-serial.c code (in 2.6.19) and I cannot
> figure out how it is
> supposed to prevent race condition and premature
> deletion of usb_serial
> structure. I see that the code attempts to protect
> usb_serial by ref
> counting, but it does not appear to be correct. I am
> not 100% sure in my
> findings, so I will appreciate if somebody will double
> check.

This code depends on protection from BKL.

	Regards
		Oliver
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