Re: [PATCH 1/2] mfd: dln2: fix _dln2_transfer return code

[Johan Hovold <johan@kernel.org>]

On Tue, Nov 11, 2014 at 02:20:56PM +0200, Octavian Purdila wrote:
> If wait_for_completion_interruptible_timeout returns a positive value
> it may be propagated as the return value of _dln2_transfer. This
> contradicts the documentation of the function and exposes unnecessary
> internals to the callers.
> 
> This patch makes sure to set the return value to 0 in that case.
> 
> Reported-by: Julia Lawall <julia.lawall@lip6.fr>
> Signed-off-by: Octavian Purdila <octavian.purdila@intel.com>
> ---
>  drivers/mfd/dln2.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/mfd/dln2.c b/drivers/mfd/dln2.c
> index 9765a17..f0747a1 100644
> --- a/drivers/mfd/dln2.c
> +++ b/drivers/mfd/dln2.c
> @@ -462,7 +462,8 @@ static int _dln2_transfer(struct dln2_dev *dln2, u16 handle, u16 cmd,
>  		if (!ret)
>  			ret = -ETIMEDOUT;
>  		goto out_free_rx_slot;
> -	}
> +	} else
> +		ret = 0;

You need braces on both branches (without commenting on the fix itself).

Johan