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* [PATCH 1/8] iio: dac: ad8801: Make use of the helper function dev_err_probe()
@ 2021-09-27  8:26 ` Cai Huoqing
  0 siblings, 0 replies; 16+ messages in thread
From: Cai Huoqing @ 2021-09-27  8:26 UTC (permalink / raw)
  To: caihuoqing
  Cc: Lars-Peter Clausen, Michael Hennerich, Jonathan Cameron,
	Vladimir Zapolskiy, Marcus Folkesson, Maxime Coquelin,
	Alexandre Torgue, linux-iio, linux-kernel, linux-arm-kernel,
	linux-stm32

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@baidu.com>
---
 drivers/iio/dac/ad8801.c | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

diff --git a/drivers/iio/dac/ad8801.c b/drivers/iio/dac/ad8801.c
index 6354b7c8f052..8acb9fee273c 100644
--- a/drivers/iio/dac/ad8801.c
+++ b/drivers/iio/dac/ad8801.c
@@ -123,10 +123,9 @@ static int ad8801_probe(struct spi_device *spi)
 	id = spi_get_device_id(spi);
 
 	state->vrefh_reg = devm_regulator_get(&spi->dev, "vrefh");
-	if (IS_ERR(state->vrefh_reg)) {
-		dev_err(&spi->dev, "Vrefh regulator not specified\n");
-		return PTR_ERR(state->vrefh_reg);
-	}
+	if (IS_ERR(state->vrefh_reg))
+		return dev_err_probe(&spi->dev, PTR_ERR(state->vrefh_reg),
+				     "Vrefh regulator not specified\n");
 
 	ret = regulator_enable(state->vrefh_reg);
 	if (ret) {
@@ -146,15 +145,15 @@ static int ad8801_probe(struct spi_device *spi)
 	if (id->driver_data == ID_AD8803) {
 		state->vrefl_reg = devm_regulator_get(&spi->dev, "vrefl");
 		if (IS_ERR(state->vrefl_reg)) {
-			dev_err(&spi->dev, "Vrefl regulator not specified\n");
-			ret = PTR_ERR(state->vrefl_reg);
+			ret = dev_err_probe(&spi->dev, PTR_ERR(state->vrefl_reg),
+					    "Vrefl regulator not specified\n");
 			goto error_disable_vrefh_reg;
 		}
 
 		ret = regulator_enable(state->vrefl_reg);
 		if (ret) {
-			dev_err(&spi->dev, "Failed to enable vrefl regulator: %d\n",
-					ret);
+			dev_err(&spi->dev,
+				"Failed to enable vrefl regulator: %d\n", ret);
 			goto error_disable_vrefh_reg;
 		}
 
-- 
2.25.1


^ permalink raw reply related	[flat|nested] 16+ messages in thread

end of thread, other threads:[~2021-09-27  9:13 UTC | newest]

Thread overview: 16+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-09-27  8:26 [PATCH 1/8] iio: dac: ad8801: Make use of the helper function dev_err_probe() Cai Huoqing
2021-09-27  8:26 ` Cai Huoqing
2021-09-27  8:26 ` [PATCH 2/8] iio: dac: lpc18xx_dac: " Cai Huoqing
2021-09-27  8:26   ` Cai Huoqing
2021-09-27  8:26 ` [PATCH 3/8] iio: dac: ltc1660: " Cai Huoqing
2021-09-27  8:26   ` Cai Huoqing
2021-09-27  8:26 ` [PATCH 4/8] iio: dac: ds4424: " Cai Huoqing
2021-09-27  8:26   ` Cai Huoqing
2021-09-27  8:26 ` [PATCH 5/8] iio: dac: max5821: " Cai Huoqing
2021-09-27  8:26   ` Cai Huoqing
2021-09-27  8:26 ` [PATCH 6/8] iio: dac: mcp4922: " Cai Huoqing
2021-09-27  8:26   ` Cai Huoqing
2021-09-27  8:26 ` [PATCH 7/8] iio: dac: stm32-dac: " Cai Huoqing
2021-09-27  8:26   ` Cai Huoqing
2021-09-27  8:26 ` [PATCH 8/8] iio: dac: ti-dac7311: " Cai Huoqing
2021-09-27  8:26   ` Cai Huoqing

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