Re: [PATCH v2 13/18] iio: imu: inv_mpu6050: Simplify with dev_err_probe()

[Jean-Baptiste Maneyrol <JManeyrol@invensense.com>]

Hello,

thanks for the patch.

Best regards,
JB

Reviewed-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com>

________________________________________
From: linux-iio-owner@vger.kernel.org <linux-iio-owner@vger.kernel.org> on behalf of Krzysztof Kozlowski <krzk@kernel.org>
Sent: Thursday, August 27, 2020 21:26
To: Jonathan Cameron; Hartmut Knaack; Lars-Peter Clausen; Peter Meerwald-Stadler; Peter Rosin; Kukjin Kim; Krzysztof Kozlowski; Michael Hennerich; Kevin Hilman; Neil Armstrong; Jerome Brunet; Martin Blumenstingl; Marek Vasut; Maxime Coquelin; Alexandre Torgue; Beniamin Bia; Tomasz Duszynski; Linus Walleij; Andy Shevchenko; linux-iio@vger.kernel.org; linux-kernel@vger.kernel.org; linux-arm-kernel@lists.infradead.org; linux-samsung-soc@vger.kernel.org; linux-amlogic@lists.infradead.org; linux-stm32@st-md-mailman.stormreply.com
Subject: [PATCH v2 13/18] iio: imu: inv_mpu6050: Simplify with dev_err_probe()

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Common pattern of handling deferred probe can be simplified with
dev_err_probe().  Less code and also it prints the error value.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
---
 drivers/iio/imu/inv_mpu6050/inv_mpu_core.c | 20 ++++++--------------
 1 file changed, 6 insertions(+), 14 deletions(-)

diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
index 3fee3947f772..18a1898e3e34 100644
--- a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
+++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
@@ -1475,22 +1475,14 @@ int inv_mpu_core_probe(struct regmap *regmap, int irq, const char *name,
        }

        st->vdd_supply = devm_regulator_get(dev, "vdd");
-       if (IS_ERR(st->vdd_supply)) {
-               if (PTR_ERR(st->vdd_supply) != -EPROBE_DEFER)
-                       dev_err(dev, "Failed to get vdd regulator %d\n",
-                               (int)PTR_ERR(st->vdd_supply));
-
-               return PTR_ERR(st->vdd_supply);
-       }
+       if (IS_ERR(st->vdd_supply))
+               return dev_err_probe(dev, PTR_ERR(st->vdd_supply),
+                                    "Failed to get vdd regulator\n");

        st->vddio_supply = devm_regulator_get(dev, "vddio");
-       if (IS_ERR(st->vddio_supply)) {
-               if (PTR_ERR(st->vddio_supply) != -EPROBE_DEFER)
-                       dev_err(dev, "Failed to get vddio regulator %d\n",
-                               (int)PTR_ERR(st->vddio_supply));
-
-               return PTR_ERR(st->vddio_supply);
-       }
+       if (IS_ERR(st->vddio_supply))
+               return dev_err_probe(dev, PTR_ERR(st->vddio_supply),
+                                    "Failed to get vddio regulator\n");

        result = regulator_enable(st->vdd_supply);
        if (result) {
--
2.17.1