iio: accel: adxl372: Fix push to buffers lost samples

BugLink: https://bugs.launchpad.net/bugs/1848750
commit 62df81b74393079debf04961c48cb22268fc5fab upstream.

One in two sample sets was lost by multiplying fifo_set_size with
sizeof(u16). Also, the double number of available samples were pushed to
the iio buffers.

Signed-off-by: Stefan Popa <stefan.popa@analog.com>
Fixes: f4f55ce38e5f ("iio:adxl372: Add FIFO and interrupts support")
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Connor Kuehl <connor.kuehl@canonical.com>
Signed-off-by: Khalid Elmously <khalid.elmously@canonical.com>

diff --git a/drivers/iio/accel/adxl372.c b/drivers/iio/accel/adxl372.c
index 863fe61a371fbffff9b2e71f054295e583a6178b..fbad4b45fe42d2d9bcf71c6e54ca1a6de06bfc9d 100644 (file)
--- a/drivers/iio/accel/adxl372.c
+++ b/drivers/iio/accel/adxl372.c
@@ -553,8 +553,7 @@ static irqreturn_t adxl372_trigger_handler(int irq, void  *p)
                        goto err;
 
                /* Each sample is 2 bytes */
-               for (i = 0; i < fifo_entries * sizeof(u16);
-                    i += st->fifo_set_size * sizeof(u16))
+               for (i = 0; i < fifo_entries; i += st->fifo_set_size)
                        iio_push_to_buffers(indio_dev, &st->fifo_buf[i]);
        }
 err: