tree 9f4b14955426dfa57bcfb940fb46e3ba5d4b3c47
parent a42f8a3d05c5598cee893c9cf5ffeee48bacb83e
author Max Reitz <mreitz@redhat.com> 1407444475 +0200
committer Kevin Wolf <kwolf@redhat.com> 1408108036 +0200

block: Catch !bs->drv in bdrv_check()

qemu-img check calls bdrv_check() twice if the first run repaired some
inconsistencies. If the first run however again triggered corruption
prevention (on qcow2) due to very bad inconsistencies, bs->drv may be
NULL afterwards. Thus, bdrv_check() should check whether bs->drv is set.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>