On Mon, Jun 29, 2015 at 09:14:33AM +0200, Geert Uytterhoeven wrote:
> drivers/iio/proximity/sx9500.c: In function ‘sx9500_buffer_preenable’:
> drivers/iio/proximity/sx9500.c:682: warning: ‘ret’ may be used uninitialized in this function
> drivers/iio/proximity/sx9500.c: In function ‘sx9500_buffer_predisable’:
> drivers/iio/proximity/sx9500.c:706: warning: ‘ret’ may be used uninitialized in this function
>
> If active_scan_mask is empty, it will loop once more over all channels,
> doing nothing.
>
> Signed-off-by: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
Reviewed-by: Vlad Dogaru <vlad.dogaru@xxxxxxxxx>
I wonder if those functions are ever called with an empty scan mask.
But the fix is correct nonetheless. Nice catch :)
> ---
> drivers/iio/proximity/sx9500.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/iio/proximity/sx9500.c b/drivers/iio/proximity/sx9500.c
> index 2042e375f8351de6..7624cfa2422d4e41 100644
> --- a/drivers/iio/proximity/sx9500.c
> +++ b/drivers/iio/proximity/sx9500.c
> @@ -679,7 +679,7 @@ out:
> static int sx9500_buffer_preenable(struct iio_dev *indio_dev)
> {
> struct sx9500_data *data = iio_priv(indio_dev);
> - int ret, i;
> + int ret = 0, i;
>
> mutex_lock(&data->mutex);
>
> @@ -703,7 +703,7 @@ static int sx9500_buffer_preenable(struct iio_dev *indio_dev)
> static int sx9500_buffer_predisable(struct iio_dev *indio_dev)
> {
> struct sx9500_data *data = iio_priv(indio_dev);
> - int ret, i;
> + int ret = 0, i;
>
> iio_triggered_buffer_predisable(indio_dev);
>
> --
> 1.9.1
>
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