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/imu/st_lsm9ds0/st_lsm9ds0_core.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/iio/imu/st_lsm9ds0/st_lsm9ds0_core.c b/drivers/iio/imu/st_lsm9ds0/st_lsm9ds0_core.c index b3a43a3b04ff..9fb06b7cde3c 100644 --- a/drivers/iio/imu/st_lsm9ds0/st_lsm9ds0_core.c +++ b/drivers/iio/imu/st_lsm9ds0/st_lsm9ds0_core.c @@ -24,10 +24,10 @@ static int st_lsm9ds0_power_enable(struct device *dev, struct st_lsm9ds0 *lsm9ds /* Regulators not mandatory, but if requested we should enable them. */ lsm9ds0->vdd = devm_regulator_get(dev, "vdd"); - if (IS_ERR(lsm9ds0->vdd)) { - dev_err(dev, "unable to get Vdd supply\n"); - return PTR_ERR(lsm9ds0->vdd); - } + if (IS_ERR(lsm9ds0->vdd)) + return dev_err_probe(dev, PTR_ERR(lsm9ds0->vdd), + "unable to get Vdd supply\n"); + ret = regulator_enable(lsm9ds0->vdd); if (ret) { dev_warn(dev, "Failed to enable specified Vdd supply\n"); @@ -36,9 +36,9 @@ static int st_lsm9ds0_power_enable(struct device *dev, struct st_lsm9ds0 *lsm9ds lsm9ds0->vdd_io = devm_regulator_get(dev, "vddio"); if (IS_ERR(lsm9ds0->vdd_io)) { - dev_err(dev, "unable to get Vdd_IO supply\n"); regulator_disable(lsm9ds0->vdd); - return PTR_ERR(lsm9ds0->vdd_io); + return dev_err_probe(dev, PTR_ERR(lsm9ds0->vdd_io), + "unable to get Vdd_IO supply\n"); } ret = regulator_enable(lsm9ds0->vdd_io); if (ret) { -- 2.25.1