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SubjectRe: [PATCH] iio: sx9500: Add missing init in sx9500_buffer_pre{en,dis}able()
On 29/06/15 08:36, Vlad Dogaru wrote:
> 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@linux-m68k.org>
>
> Reviewed-by: Vlad Dogaru <vlad.dogaru@intel.com>
>
> I wonder if those functions are ever called with an empty scan mask.
I'm feeling to lazy to check ;)
> But the fix is correct nonetheless. Nice catch :)
Applied to the fixes-for-4.2 branch of iio.git

Thanks,

Jonathan
>
>> ---
>> 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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