Re: [PATCH v5 4/4] block: qcow2: remove the created file on initialization error

[Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>]

09.12.2020 23:33, Maxim Levitsky wrote:
> If the qcow initialization fails, we should remove the file if it was
> already created, to avoid leaving stale files around.
> 
> We already do this for luks raw images.
> 
> Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
> Reviewed-by: Alberto Garcia <berto@igalia.com>
> ---
>   block/qcow2.c | 6 ++++--
>   1 file changed, 4 insertions(+), 2 deletions(-)
> 
> diff --git a/block/qcow2.c b/block/qcow2.c
> index 3a90ef2786..68c9182f92 100644
> --- a/block/qcow2.c
> +++ b/block/qcow2.c
> @@ -3847,12 +3847,14 @@ static int coroutine_fn qcow2_co_create_opts(BlockDriver *drv,
>   
>       /* Create the qcow2 image (format layer) */
>       ret = qcow2_co_create(create_options, errp);
> +finish:
>       if (ret < 0) {
> -        goto finish;
> +        bdrv_co_delete_file_noerr(bs);
> +        bdrv_co_delete_file_noerr(data_bs);
>       }
>   
>       ret = 0;

Ooops :) After this patch the function always returns zero :)

> -finish:
> +
>       qobject_unref(qdict);
>       bdrv_unref(bs);
>       bdrv_unref(data_bs);
> 


-- 
Best regards,
Vladimir