4.17-stable review patch. If anyone has any objections, please let me know. ------------------ From: Leonard Crestez <leonard.crestez@xxxxxxx> commit b02ec67a8e38875cdc5f9214be885022f11c0017 upstream. Interrupts are ignored if no event bit is set in the status status register and this breaks the buffer interface. No data is shown when running "iio_generic_buffer -n mma8451 -a" and interrupt counts go crazy. Fix by not returning IRQ_NONE if DRDY is set. Fixes: 605f72de137a ("iio: accel: mma8452: improvements to handle multiple events") Signed-off-by: Leonard Crestez <leonard.crestez@xxxxxxx> cc: <Stable@xxxxxxxxxxxxxxx> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/iio/accel/mma8452.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/iio/accel/mma8452.c +++ b/drivers/iio/accel/mma8452.c @@ -1034,7 +1034,7 @@ static irqreturn_t mma8452_interrupt(int if (src < 0) return IRQ_NONE; - if (!(src & data->chip_info->enabled_events)) + if (!(src & (data->chip_info->enabled_events | MMA8452_INT_DRDY))) return IRQ_NONE; if (src & MMA8452_INT_DRDY) {