tree f3a41713d7a4e7cdef21cd3a7c2f5a49104f2368
parent 23f2166d736dcf7854e674a160694b151ee0725b
author Paul Brook <paul@codesourcery.com> 1267104546 +0000
committer Paul Brook <paul@codesourcery.com> 1267104546 +0000

Fix -usbdevice crash

If -usbdevice is used on a machine with no USB busses, usb_create
will fail and return NULL.  Patch below handles this failure gracefully
rather than crashing when we try to init the device.

Signed-off-by: Paul Brook <paul@codesourcery.com>