scsi bus reset

[<spectral@hangar18.campus.luth.se>]

I was about to burn an iso image with cdrecord and it all seemed to be ok,
until i got this message:

Mar 13 22:27:33 hangar18 kernel: scsi : aborting command due to timeout :
pid 232406, scsi0, channel 0, id 4, lun 0 Write (10) 00 00 00 00 00 00 00
10 00

and now the burner is locked.
I've tried to do:
echo "scsi remove-single-device 0 0 4 0" > /proc/scsi/scsi
but it only complains about the file already existing.
(/proc/scsi/scsi: File exists.)

is there noway i can unlock the burner without rebooting?
I have the scsi card in kernel so no I can't rmmod it and then reinsert.

Thanks in advance

-- 
Jonas Nyren @ Luleå University of Technology