Re: [PATCH] checks: Fix crash with multiple source annotations

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On Tue, Nov 27, 2018 at 08:16:30AM -0600, Rob Herring wrote:
> Commit 3616b9a811b6 ("checks: Use source position information for check
> failures") causes crashes when there's a check message with multiple
> source annotations. Drop the errant addition to the str pointer left
> over from the previous version.
> 
> Signed-off-by: Rob Herring <robh@xxxxxxxxxx>

Applied.  Although,

1) I don't think "errant" means what you think it means (granted, some
   IBM doc authors appear to have the same delusion)

2) A test would be nice.

> ---
>  checks.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/checks.c b/checks.c
> index 4dfdf485ea87..4834e44b37b2 100644
> --- a/checks.c
> +++ b/checks.c
> @@ -123,7 +123,7 @@ static inline void  PRINTF(5, 6) check_msg(struct check *c, struct dt_info *dti,
>  			pos = pos->next;
>  
>  			file_str = srcpos_string(pos);
> -			str += xasprintf_append(&str, "  also defined at %s\n", file_str);
> +			xasprintf_append(&str, "  also defined at %s\n", file_str);
>  			free(file_str);
>  		}
>  	}

-- 
David Gibson			| I'll have my music baroque, and my code
david AT gibson.dropbear.id.au	| minimalist, thank you.  NOT _the_ _other_
				| _way_ _around_!
http://www.ozlabs.org/~dgibson

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