block: Handle bs->options in bdrv_open() only
The fail paths of bdrv_file_open() and bdrv_open() naturally exhibit similarities, thus it is possible to reuse the one from bdrv_open() and shorten the one in bdrv_file_open() accordingly. Also, setting bs->options in bdrv_file_open() is not necessary if it is already done in bdrv_open(). Signed-off-by: NMax Reitz <mreitz@redhat.com> Reviewed-by: NBenoit Canet <benoit@irqsave.net> Reviewed-by: NKevin Wolf <kwolf@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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