Re: [PATCH 7/7] staging:iio:ade7854: Add proper error handling condition

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On Wed, Mar 14, 2018 at 03:12:18PM -0300, Rodrigo Siqueira wrote:
> There is some improper error handling for IRQ and device register.  This
> patch adds a proper verification. The IRQ correction was extracted from
> John Syne patches.
> 
> Signed-off-by: Rodrigo Siqueira <rodrigosiqueiramelo@xxxxxxxxx>
> Signed-off-by: John Syne <john3909@xxxxxxxxx>
> ---
>  drivers/staging/iio/meter/ade7854.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/staging/iio/meter/ade7854.c b/drivers/staging/iio/meter/ade7854.c
> index 09fd8c067738..49cbe365e43d 100644
> --- a/drivers/staging/iio/meter/ade7854.c
> +++ b/drivers/staging/iio/meter/ade7854.c
> @@ -436,7 +436,7 @@ static int ade7854_initial_setup(struct iio_dev *indio_dev)
>  
>  	/* Disable IRQ */
>  	ret = ade7854_set_irq(dev, false);
> -	if (ret) {
> +	if (ret < 0) {
>  		dev_err(dev, "disable irq failed");
>  		goto err_ret;
>  	}

Why is the original wrong?  It seems fine.

regards,
dan carpenter


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