Re: [Xen-devel] [PATCH v2 3/7] libxl: make some _dipose functions idempotent and tolerate NULL

[Ian Campbell <ian.campbell@xxxxxxxxxx>]

On Wed, 2015-02-25 at 14:56 +0000, Wei Liu wrote:
>          free(sl[i]);
> +        sl[i] = NULL;

I wonder if a helper which takes a void**p and does "free(*p); *p =
NULL" would be at all useful?

(NB, I intend to apply this patch regardless and am in the process of
doing so)


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