staging:iio: Remove unnecessary casts for iio_push_to_buffers()

Now that iio_push_to_buffers() takes a void pointer for the data parameter we
can remove those casts to u8*.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

drivers/staging/iio/accel/lis3l02dq_ring.c

@@ -150,7 +150,7 @@ static irqreturn_t lis3l02dq_trigger_handler(int irq, void *p)
 	if (indio_dev->scan_timestamp)
 		*(s64 *)((u8 *)data + ALIGN(len, sizeof(s64)))
 			= pf->timestamp;
-	iio_push_to_buffers(indio_dev, (u8 *)data);
+	iio_push_to_buffers(indio_dev, data);
 
 	kfree(data);
 done:

drivers/staging/iio/adc/mxs-lradc.c

@@ -631,7 +631,7 @@ static irqreturn_t mxs_lradc_trigger_handler(int irq, void *p)
 		*timestamp = pf->timestamp;
 	}
 
-	iio_push_to_buffers(iio, (u8 *)lradc->buffer);
+	iio_push_to_buffers(iio, lradc->buffer);
 
 	iio_trigger_notify_done(iio->trig);
 

drivers/staging/iio/iio_simple_dummy_buffer.c

@@ -86,7 +86,7 @@ static irqreturn_t iio_simple_dummy_trigger_h(int irq, void *p)
 	if (indio_dev->scan_timestamp)
 		*(s64 *)((u8 *)data + ALIGN(len, sizeof(s64)))
 			= iio_get_time_ns();
-	iio_push_to_buffers(indio_dev, (u8 *)data);
+	iio_push_to_buffers(indio_dev, data);
 
 	kfree(data);
 

drivers/staging/iio/impedance-analyzer/ad5933.c

@@ -676,7 +676,7 @@ static void ad5933_work(struct work_struct *work)
 		} else {
 			buf[0] = be16_to_cpu(buf[0]);
 		}
-		iio_push_to_buffers(indio_dev, (u8 *)buf);
+		iio_push_to_buffers(indio_dev, buf);
 	} else {
 		/* no data available - try again later */
 		schedule_delayed_work(&st->work, st->poll_time_jiffies);

drivers/staging/iio/meter/ade7758_ring.c

@@ -73,7 +73,7 @@ static irqreturn_t ade7758_trigger_handler(int irq, void *p)
 	if (indio_dev->scan_timestamp)
 		dat64[1] = pf->timestamp;
 
-	iio_push_to_buffers(indio_dev, (u8 *)dat64);
+	iio_push_to_buffers(indio_dev, dat64);
 
 	iio_trigger_notify_done(indio_dev->trig);