Re: [PATCH 3/10] drivers/hid: Move dereferences below a NULL test

From: Jiri Kosina
Date: Sun Jul 19 2009 - 18:05:12 EST


On Sun, 19 Jul 2009, Julia Lawall wrote:

> From: Julia Lawall <julia@xxxxxxx>
>
> If the NULL test is necessary, then the dereferences should be moved below
> the NULL test.
>
> The semantic patch that makes this change is as follows:
> (http://www.emn.fr/x-info/coccinelle/)
>
> // <smpl>
> @@
> type T;
> expression E,E1;
> identifier i,fld;
> statement S;
> @@
>
> - T i = E->fld;
> + T i;
> ... when != E=E1
> when != i
> if (E == NULL||...) S
> + i = E->fld;
> // </smpl>
>
> Signed-off-by: Julia Lawall <julia@xxxxxxx>

Good catch, applied, thanks Julia.

--
Jiri Kosina
SUSE Labs
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/