tree efbe652cf1b7e8ab31a2497ca7ad24e1bc962595
parent dba2855572c746836ad90ce9154403b5929d996b
author Max Reitz <mreitz@redhat.com> 1394491448 +0100
committer Stefan Hajnoczi <stefanha@redhat.com> 1394717007 +0100

block: bs->drv may be NULL in bdrv_debug_resume()

Currently, bdrv_debug_resume() requires every bs->drv in the BDS stack
to be NULL until a bs->drv with an implementation of bdrv_debug_resume()
is found. For a normal function, this would be fine, but this is a
function for debugging purposes and should therefore allow intermediate
BDS not to have a driver (i.e., be "ejected"). Otherwise, it is hard to
debug such situations.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>