linux-kernel - Re: [PATCH 1/5] usb_debug: implement multi urb write

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Date:	Wed, 6 May 2009 14:31:56 +0200
From:	Oliver Neukum <oliver@...kum.org>
To:	Jason Wessel <jason.wessel@...driver.com>
Cc:	greg@...ah.com, linux-usb@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/5] usb_debug: implement multi urb write

Am Mittwoch, 6. Mai 2009 13:57:31 schrieb Jason Wessel:

> I would agree with you on that.  It also means that the ftdi_sio.c
> driver has the same bug, because that is where it was derived from.  You

Greg will happily take a patch.

> led me to see another flaw upon further inspection in that the usb_debug
> driver must also implement the chars_in_buffer() call back because the
> generic serial code will cause an oops with a null pointer dereference
> of the write_urb.

Good.

	Regards
		Oliver

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