linux-kernel - Re: [PATCH] w35und: fix usb_control_msg() error handling in wb35

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Message-Id: <1232659146.9701.76.camel@brick>
Date:	Thu, 22 Jan 2009 13:19:06 -0800
From:	Harvey Harrison <harvey.harrison@...il.com>
To:	Pavel Machek <pavel@...e.cz>
Cc:	Sandro Bonazzola <sandro.bonazzola@...il.com>,
	Pekka J Enberg <penberg@...helsinki.fi>,
	Greg Kroah-Hartman <greg@...ah.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] w35und: fix usb_control_msg() error handling in
 wb35_probe()

On Thu, 2009-01-22 at 22:10 +0100, Pavel Machek wrote:
> On Thu 2009-01-22 20:25:06, Sandro Bonazzola wrote:
> > -----BEGIN PGP SIGNED MESSAGE-----
> > Hash: SHA1
> > 
> > Pavel Machek ha scritto:
> > >> From: Pekka Enberg <penberg@...helsinki.fi>
> > >>
> > >> If successful, the usb_control_msg() function returns the number of
> > >> bytes transferred. Fix up wb35_probe() to only bail out if the function
> > >> returns a negative number.
> > >>
> > >> Reported-by: Sandro Bonazzola <sandro.bonazzola@...il.com>
> > >> Signed-off-by: Pekka Enberg <penberg@...helsinki.fi>
> > > 
> > > Acked-by: Pavel Machek <pavel@...e.cz>
> > 
> > Ok, tested. Here is the result:
> > 
> > # uname -a
> > Linux arilinn 2.6.29-rc2-00013-gf3b8436-dirty #1 Thu Jan 22 19:39:23 CET 2009
> > x86_64 AMD Athlon(tm) 64 Processor 3500+ AuthenticAMD GNU/Linux
> > 
> > Inserting the USB device:
> > # dmesg
> > usb 1-3: new high speed USB device using ehci_hcd and address 4
> > usb 1-3: New USB device found, idVendor=18e8, idProduct=6201
> > usb 1-3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
> > usb 1-3: Product: Usb2Wlan
> > usb 1-3: Manufacturer: WINBOND
> > usb 1-3: SerialNumber: 101d350112
> > usb 1-3: configuration #1 chosen from 1 choice
> > w35und: module is from the staging directory, the quality is unknown, you have
> > been warned.
> > wmaster0 (usb): not using net_device_ops yet
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> 
> This looks like a key clue...
> 
> Maybe you could try _current_ w35und on 2.6.28 or something like that?
> I have feeling that networking core changed in incompatible way here.
> 

I thought the net-device-ops conversion was opt in?  It shouldn't break
anything if the driver hasn't been converted yet.

Harvey

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