Re: [Qemu-devel] [PATCH] block: Fix leak of ignore_children in error path

[Eric Blake <eblake@redhat.com>]

On 03/14/2018 10:51 PM, Fam Zheng wrote:
> Reported-by: Max Reitz <mreitz@redhat.com>
> Signed-off-by: Fam Zheng <famz@redhat.com>
> ---
>   block.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)

Reviewed-by: Eric Blake <eblake@redhat.com>

> 
> diff --git a/block.c b/block.c
> index 75a9fd49de..c1fda9fd57 100644
> --- a/block.c
> +++ b/block.c
> @@ -3671,12 +3671,12 @@ int bdrv_drop_intermediate(BlockDriverState *top, BlockDriverState *base,
>           GSList *ignore_children = g_slist_prepend(NULL, c);
>           bdrv_check_update_perm(base, NULL, c->perm, c->shared_perm,
>                                  ignore_children, &local_err);
> +        g_slist_free(ignore_children);
>           if (local_err) {
>               ret = -EPERM;
>               error_report_err(local_err);
>               goto exit;
>           }
> -        g_slist_free(ignore_children);
>   
>           /* If so, update the backing file path in the image file */
>           if (c->role->update_filename) {
> 

-- 
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3266
Virtualization:  qemu.org | libvirt.org