Re: WARNINGs in usb-serial.c

[Greg KH <gregkh@suse.de>]

On Thu, Sep 03, 2009 at 11:24:01PM +0200, Rafael J. Wysocki wrote:
> 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.

They were posted on the linux-usb mailing list, I'm still fighting my
patch queue to get them into my tree soon.

thanks,

greg k-h