6.19-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Giorgi Tchankvetadze <redacted>

commit 57b207e38d414a27fda9fff638a0d3e7ef16b917 upstream.

The else branch of ade9000_iio_push_streaming() incorrectly returns
IRQ_HANDLED on regmap_write failure. This function returns int (0 on
success, negative errno on failure), so IRQ_HANDLED (1) would be
misinterpreted as a non-error by callers.

Return ret instead, consistent with every other error path in the
function.

Fixes: 81de7b4619fc ("iio: adc: add ade9000 support")
Signed-off-by: Giorgi Tchankvetadze <redacted>
Reviewed-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
Cc: <redacted>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/iio/adc/ade9000.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/iio/adc/ade9000.c
+++ b/drivers/iio/adc/ade9000.c

@@ -787,7 +787,7 @@ static int ade9000_iio_push_streaming(st
 				   ADE9000_MIDDLE_PAGE_BIT);
 		if (ret) {
 			dev_err_ratelimited(dev, "IRQ0 WFB write fail");
-			return IRQ_HANDLED;
+			return ret;
 		}
 
 		ade9000_configure_scan(indio_dev, ADE9000_REG_WF_BUFF);