Re: [PATCH 09/12] blockdev: Fix a memleak in drive_backup_prepare()

[Li Qiang]

Pan Nengyuan <pannengyuan@huawei.com> 于2020年8月14日周五 下午6:54写道：
>
> 'local_err' seems forgot to propagate in error path, it'll cause
> a memleak. Fix it.
>
> Reported-by: Euler Robot <euler.robot@huawei.com>
> Signed-off-by: Pan Nengyuan <pannengyuan@huawei.com>

Reviewed-by: Li Qiang <liq3ea@gmail.com>

> ---
> Cc: Kevin Wolf <kwolf@redhat.com>
> Cc: Max Reitz <mreitz@redhat.com>
> Cc: Markus Armbruster <armbru@redhat.com>
> Cc: qemu-block@nongnu.org
> ---
>  blockdev.c | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/blockdev.c b/blockdev.c
> index 3848a9c8ab..842ac289c1 100644
> --- a/blockdev.c
> +++ b/blockdev.c
> @@ -1801,6 +1801,7 @@ static void drive_backup_prepare(BlkActionState 
> *common, Error **errp)
>      if (set_backing_hd) {
>          bdrv_set_backing_hd(target_bs, source, &local_err);
>          if (local_err) {
> +            error_propagate(errp, local_err);
>              goto unref;
>          }
>      }
> --
> 2.18.2
>
>