tree bd93d226c7af3454aa64b64bdb771b8fc5d22083
parent c8f6d58edb0defbe1e90d44419ec8ec6d711c341
author Kevin Wolf <kwolf@redhat.com> 1487360552 +0100
committer Kevin Wolf <kwolf@redhat.com> 1488311271 +0100

block: Add Error parameter to bdrv_set_backing_hd()

Not all callers of bdrv_set_backing_hd() know for sure that attaching
the backing file will be allowed by the permission system. Return the
error from the function rather than aborting.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Acked-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>