[PATCH] cryptui: use add_oid_to_usage correctly (Coverity)

[Juan Lang]

On Fri, Feb 1, 2013 at 3:45 PM, Juan Lang <juan.lang at gmail.com> wrote:

> Hi Marcus,
>
> -            add_oid_to_usage(usage, ptr);
> +            usage = add_oid_to_usage(usage, ptr);
>
> This looks fine, but would you mind making the same change on line 337?
>
> Actually, perhaps I hit sent too early. If this memory allocation fails,
which is the only situation under which add_oid_to_usage doesn't just
return its first parameter, it'll immediately crash on the next invocation
with a NULL pointer dereference.

I'm not sure it's worth all the trouble in an out of memory situation.
Perhaps just remove the return value and let the caller crash.

Thanks again,
--Juan
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