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Re: [PATCH v5 02/14] perf tools: Prevent calling machine__delete() on non-allocated machine

From Jiri Olsa <jolsa@redhat.com>
Newsgroups linux.kernel
Subject Re: [PATCH v5 02/14] perf tools: Prevent calling machine__delete() on non-allocated machine
Date 2015-12-15 13:40 +0100
Message-ID <qFX3A-479-21@gated-at.bofh.it> (permalink)
References <qFyRz-4Xv-7@gated-at.bofh.it> <qFyRA-4Xv-17@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Mon, Dec 14, 2015 at 10:39:11AM +0000, Wang Nan wrote:

SNIP

> @@ -137,12 +138,15 @@ void machine__exit(struct machine *machine)
>  void machine__delete(struct machine *machine)
>  {
>  	machine__exit(machine);
> -	free(machine);
> +	if (machine->allocated)
> +		free(machine);
> +	else
> +		pr_warning("WARNING: delete a non-allocated machine. Skip.\n");

we used WARN_ONCE several times already in similar cases

jirka
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Thread

[PATCH v5 02/14] perf tools: Prevent calling machine__delete() on non-allocated machine Wang Nan <wangnan0@huawei.com> - 2015-12-14 11:50 +0100
  Re: [PATCH v5 02/14] perf tools: Prevent calling machine__delete()  on non-allocated machine Jiri Olsa <jolsa@redhat.com> - 2015-12-15 13:40 +0100
    Re: [PATCH v5 02/14] perf tools: Prevent calling machine__delete()  on non-allocated machine "Wangnan (F)" <wangnan0@huawei.com> - 2015-12-16 02:40 +0100
      Re: [PATCH v5 02/14] perf tools: Prevent calling machine__delete()  on non-allocated machine Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-12-16 20:50 +0100

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