Re: [PATCH] drivers/mtd/devices/spear_smi.c: failure test for null rather than negative integer

From: Stefan Roese
Date: Mon Jul 16 2012 - 05:49:38 EST


On Wednesday 11 July 2012 10:58:38 Julia Lawall wrote:
> From: Julia Lawall <Julia.Lawall@xxxxxxx>
>
> dev_get_platdata returns a pointer, so the failure value would be NULL
> rather than a negative integer.
>
> The semantic match that finds this problem is: (http://coccinelle.lip6.fr/)
>
> // <smpl>
> @@
> expression x,e;
> statement S1,S2;
> @@
>
> *x = dev_get_platdata(...)
> ... when != x = e
> *if (x < 0) S1 else S2
> // </smpl>
>
> Signed-off-by: Julia Lawall <Julia.Lawall@xxxxxxx>

Acked-by: Stefan Roese <sr@xxxxxxx>

Thanks,
Stefan
--
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/