> My code is attached to this document. It is a module for 2.4.x.
>
> Any help would be appreciated.
magtek_delete will corrupt kernel memory management. You must not free
parts of a structure.
magtek_read: copy_to_user with spinlock held - great big NO, NO
magtek_ioctl: the spinlock must be irqsafe
magtek_disconnect: spinlock must be irqsafe
usb_unlink_urb with spinlock held
you don't remove it from the device table
HTH
Oliver
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