Re: [PATCH 5/5] staging: lustre: osc: drop trivially useless initialization

From: Joachim Eastwood
Date: Sat Jun 20 2015 - 17:44:32 EST


On 20 June 2015 at 21:07, Julia Lawall <Julia.Lawall@xxxxxxx> wrote:
> Remove initialization of a variable that is immediately reassigned.
>
> The semantic patch that makes this change is as follows:
> (http://coccinelle.lip6.fr/)
>
> // <smpl>
> @@
> type T;
> identifier x;
> constant C;
> expression e;
> @@
>
> T x
> - = C
> ;
> x = e;
> // </smpl>
>
> Signed-off-by: Julia Lawall <Julia.Lawall@xxxxxxx>
>
> ---
> drivers/staging/lustre/lustre/osc/osc_page.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff -u -p a/drivers/staging/lustre/lustre/osc/osc_page.c b/drivers/staging/lustre/lustre/osc/osc_page.c
> --- a/drivers/staging/lustre/lustre/osc/osc_page.c
> +++ b/drivers/staging/lustre/lustre/osc/osc_page.c
> @@ -471,7 +471,7 @@ static int osc_page_flush(const struct l
> struct cl_io *io)
> {
> struct osc_page *opg = cl2osc_page(slice);
> - int rc = 0;
> + int rc;
>
> rc = osc_flush_async_page(env, io, opg);
> return rc;
>

The whole rc variable is kinda useless.

Why not make it just:
return osc_flush_async_page(env, io, opg);

regards,
Joachim Eastwood
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