Re: [PATCH 3/5] arch/arm/mach-omap2/smartreflex.c: add missing error-handling code
From: Kevin Hilman
Date: Tue Jul 05 2011 - 13:51:23 EST
Julia Lawall <julia@xxxxxxx> writes:
> From: Julia Lawall <julia@xxxxxxx>
>
> At this point, the ioremap has taken place, so the error handling code at
> the label err_iounmap should be used rather than returning directly.
>
> The semantic match that finds this problem is as follows:
> (http://coccinelle.lip6.fr/)
>
> // <smpl>
> @r@
> identifier x;
> @@
>
> kfree(x)
>
> @@
> identifier r.x;
> expression E1!=0,E2,E3,E4;
> statement S;
> @@
>
> (
> if (<+...x...+>) S
> |
> if (...) { ... when != kfree(x)
> when != if (...) { ... kfree(x); ... }
> when != x = E3
> * return E1;
> }
> ... when != x = E2
> if (...) { ... when != x = E4
> kfree(x); ... return ...; }
> )
> // </smpl>
>
> Signed-off-by: Julia Lawall <julia@xxxxxxx>
Acked-by: Kevin Hilman <khilman@xxxxxx>
Tony, can you add this to devel-fixes?
Kevin
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