Re: [PATCH 1/4] block.c: fix compilation error on possible unitialized variable

[Thomas Huth]

On 08/06/2021 16.09, Cleber Rosa wrote:
> GCC from CentOS Stream 8 is erroring out on a possibily unitialized
> varible.
>
> Full version info for the compiler used:
>
>   gcc (GCC) 8.5.0 20210514 (Red Hat 8.5.0-1)
>
> Signed-off-by: Cleber Rosa <crosa@redhat.com>
> ---
>   block.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/block.c b/block.c
> index 3f456892d0..08f29e6b65 100644
> --- a/block.c
> +++ b/block.c
> @@ -4866,7 +4866,7 @@ static int bdrv_replace_node_common(BlockDriverState 
> *from,
>       Transaction *tran = tran_new();
>       g_autoptr(GHashTable) found = NULL;
>       g_autoptr(GSList) refresh_list = NULL;
> -    BlockDriverState *to_cow_parent;
> +    BlockDriverState *to_cow_parent = NULL;
>       int ret;

Already reported here:

 https://lists.gnu.org/archive/html/qemu-devel/2021-05/msg01229.html

 Thomas