On 11/07/16 12:54, Lars-Peter Clausen wrote:
> The data buffer for captured mode for the ad799x driver is allocated in the
> update_scan_mode() callback. This callback is not set in the iio_info
> struct for the ad7791/ad7995/ad7999, which means that the data buffer is
> not allocated when a captured transfer is started. As a result the driver
> crashes when the first sample is received. To fix this properly set the
> update_scan_mode() callback.
>
> Fixes: d8dca33027c1 ("staging:iio:ad799x: Preallocate sample buffer")
> Signed-off-by: Lars-Peter Clausen <lars@xxxxxxxxxx>
Applied to the fixes-togreg-post-rc1 branch (because fixes-togreg is
currently empty and hence this'll go upstream sooner) and marked for stable.
thanks,
Jonathan
> ---
> Appologies if you received this twice, forgot the list on the first try.
> ---
> drivers/iio/adc/ad799x.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/iio/adc/ad799x.c b/drivers/iio/adc/ad799x.c
> index b616376..9704090 100644
> --- a/drivers/iio/adc/ad799x.c
> +++ b/drivers/iio/adc/ad799x.c
> @@ -527,6 +527,7 @@ static struct attribute_group ad799x_event_attrs_group = {
> static const struct iio_info ad7991_info = {
> .read_raw = &ad799x_read_raw,
> .driver_module = THIS_MODULE,
> + .update_scan_mode = ad799x_update_scan_mode,
> };
>
> static const struct iio_info ad7993_4_7_8_noirq_info = {
>
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