linux-kernel - Re: [PATCH 09/14] tools lib traceevent: Get rid of die() in add

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Message-ID: <CAKb7Uvhhg2siBURLxTb2jgW_-5AUeK_yqRpEJgi0HW12zQTMyg@mail.gmail.com>
Date:	Mon, 9 Dec 2013 01:28:26 -0500
From:	Ilia Mirkin <imirkin@...m.mit.edu>
To:	Namhyung Kim <namhyung@...nel.org>
Cc:	Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
	Steven Rostedt <rostedt@...dmis.org>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Ingo Molnar <mingo@...nel.org>, Jiri Olsa <jolsa@...hat.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Namhyung Kim <namhyung.kim@....com>
Subject: Re: [PATCH 09/14] tools lib traceevent: Get rid of die() in add_right()

On Mon, Dec 9, 2013 at 12:34 AM, Namhyung Kim <namhyung@...nel.org> wrote:
> Signed-off-by: Namhyung Kim <namhyung@...nel.org>
> ---
>  tools/lib/traceevent/parse-filter.c | 12 +++++++++---
>  1 file changed, 9 insertions(+), 3 deletions(-)
>
> diff --git a/tools/lib/traceevent/parse-filter.c b/tools/lib/traceevent/parse-filter.c
> index 5efe66a682bd..a1ad609a860f 100644
> --- a/tools/lib/traceevent/parse-filter.c
> +++ b/tools/lib/traceevent/parse-filter.c
> @@ -583,12 +583,18 @@ static int add_right(struct filter_arg *op, struct filter_arg *arg,
>                         op->str.type = op_type;
>                         op->str.field = left->field.field;
>                         op->str.val = strdup(str);
> -                       if (!op->str.val)
> -                               die("malloc string");
> +                       if (!op->str.val) {
> +                               show_error(error_str, "Failed to allocate string filter");
> +                               return -1;
> +                       }
>                         /*
>                          * Need a buffer to copy data for tests
>                          */
> -                       op->str.buffer = malloc_or_die(op->str.field->size + 1);
> +                       op->str.buffer = malloc(op->str.field->size + 1);
> +                       if (op->str.buffer) {

That should probably be

if (!op->str.buffer)

Also, should you free op->str.val? Perhaps the surrounding code takes
care of that.

> +                               show_error(error_str, "Failed to allocate string filter");
> +                               return -1;
> +                       }
>                         /* Null terminate this buffer */
>                         op->str.buffer[op->str.field->size] = 0;
>
> --
> 1.7.11.7
>
> --
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