[PATCH 8/9] iio: adc: rockchip_saradc: Make use of the helper function dev_err_probe()

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When possible use dev_err_probe help to properly deal with the
PROBE_DEFER error, the benefit is that DEFER issue will be logged
in the devices_deferred debugfs file.
Using dev_err_probe() can reduce code size, and the error value
gets printed.

Signed-off-by: Cai Huoqing <caihuoqing@xxxxxxxxx>
---
 drivers/iio/adc/rockchip_saradc.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/iio/adc/rockchip_saradc.c b/drivers/iio/adc/rockchip_saradc.c
index a56a0d7337ca..57419ccb3c70 100644
--- a/drivers/iio/adc/rockchip_saradc.c
+++ b/drivers/iio/adc/rockchip_saradc.c
@@ -392,11 +392,10 @@ static int rockchip_saradc_probe(struct platform_device *pdev)
 	}
 
 	info->vref = devm_regulator_get(&pdev->dev, "vref");
-	if (IS_ERR(info->vref)) {
-		dev_err(&pdev->dev, "failed to get regulator, %ld\n",
-			PTR_ERR(info->vref));
-		return PTR_ERR(info->vref);
-	}
+	if (IS_ERR(info->vref))
+		return dev_err_probe(&pdev->dev,
+				     PTR_ERR(info->vref),
+				     "failed to get regulator\n");
 
 	if (info->reset)
 		rockchip_saradc_reset_controller(info->reset);
-- 
2.25.1




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