Re: [PATCH 4/7] net/bluetooth/rfcomm/core.c: fix error return code

From: Marcel Holtmann
Date: Wed Aug 29 2012 - 14:23:32 EST


Hi Julia,

> Initialize return variable before exiting on an error path.
>
> A simplified version of the semantic match that finds this problem is as
> follows: (http://coccinelle.lip6.fr/)
>
> // <smpl>
> (
> if@p1 (\(ret < 0\|ret != 0\))
> { ... return ret; }
> |
> ret@p1 = 0
> )
> ... when != ret = e1
> when != &ret
> *if(...)
> {
> ... when != ret = e2
> when forall
> return ret;
> }
>
> // </smpl>
>
> Signed-off-by: Julia Lawall <Julia.Lawall@xxxxxxx>
>
> ---
> net/bluetooth/rfcomm/core.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)

Acked-by: Marcel Holtmann <marcel@xxxxxxxxxxxx>

Regards

Marcel


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