On Tue, Feb 02, 2021 at 10:41:30PM +0100, mwi...@suse.com wrote:
> From: Martin Wilck <mwi...@suse.com>
> 
> If start_waiter was set before and the "rescan" label was used,
> we may try to set up an empty/invalid map.
> Always fail if add_map_with_path() isn't successful.
> 
> Signed-off-by: Martin Wilck <mwi...@suse.com>

This patch looks fine, but I don't think that there was any risk before.
I don't see how you could loop back to rescan with mpp == NULL, which
is what would need to happen before you could ever run this code.
At any rate

Reviewed-by: Benjamin Marzinski <bmar...@redhat.com>
> ---
>  multipathd/main.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/multipathd/main.c b/multipathd/main.c
> index 43d7768..425492a 100644
> --- a/multipathd/main.c
> +++ b/multipathd/main.c
> @@ -1028,7 +1028,7 @@ rescan:
>                        */
>                       start_waiter = 1;
>               }
> -             if (!start_waiter)
> +             else
>                       goto fail; /* leave path added to pathvec */
>       }
>  
> -- 
> 2.29.2

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