linux-kernel - Re: WARNINGs in usb-serial.c

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Date:	Thu, 3 Sep 2009 23:24:01 +0200
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Greg KH <gregkh@...e.de>
Cc:	Miklos Szeredi <miklos@...redi.hu>, linux-usb@...r.kernel.org,
	linux-kernel@...r.kernel.org, alan@...ux.intel.com,
	stern@...land.harvard.edu
Subject: Re: WARNINGs in usb-serial.c

On Thursday 03 September 2009, Greg KH wrote:
> On Thu, Sep 03, 2009 at 04:13:34PM +0200, Miklos Szeredi wrote:
> > I get the following warnings in 2.6.31-rc.  A lot of them:
> > 
> > WARNING: at drivers/usb/serial/usb-serial.c:414 serial_write_room+0x59/0x6e [usbserial]()
> > WARNING: at drivers/usb/serial/usb-serial.c:401 serial_write+0x77/0x9d [usbserial]()
> > 
> > This is a huawei-3565 modem.
> > 
> > The messages don't seem to hurt, but there's lot of trouble with this
> > gadget.  Sometimes it just doesn't work after a while and a reboot is
> > needed.  Sometimes it hangs the kernel after suspend, etc.  Not sure
> > if this is related to the warnings...
> 
> {sigh}
> 
> The tty layer changes are being a pain here :(
> 
> Alan Stern posted a set of patches to the linux-usb list to hopefully
> address stuff like this, is there any way you could test them out to see
> if they help or not?

Do you have a pointer to the patches, please?  I need it for the regression list.

Rafael
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