Re: WARNINGs in usb-serial.c

From: Greg KH
Date: Thu Sep 03 2009 - 14:38:33 EST

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...


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?


greg k-h
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