Re: [PATCH 13/15] drivers/clocksource/cyclone.c: add missing iounmap

From: john stultz
Date: Mon Jan 23 2012 - 19:39:58 EST


On Thu, 2012-01-12 at 10:55 +0100, Julia Lawall wrote:
> From: Julia Lawall <Julia.Lawall@xxxxxxx>
>
> Add missing iounmap in error handling code, in a case where the function
> already preforms iounmap on some other execution path.
>
> A simplified version of the semantic match that finds this problem is as
> follows: (http://coccinelle.lip6.fr/)
>
> // <smpl>
> @@
> expression e;
> statement S,S1;
> int ret;
> @@
> e = \(ioremap\|ioremap_nocache\)(...)
> ... when != iounmap(e)
> if (<+...e...+>) S
> ... when any
> when != iounmap(e)
> *if (...)
> { ... when != iounmap(e)
> return ...; }
> ... when any
> iounmap(e);
> // </smpl>
>
> Signed-off-by: Julia Lawall <Julia.Lawall@xxxxxxx>

Looks good. I've just queued it.
Thanks for sending this in!
-john


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