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| author | Cai Huoqing <caihuoqing@baidu.com> | 2021-10-08 17:26:52 +0800 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2021-10-20 14:43:53 +0100 |
| commit | 0d31d91e614505803a0788b92f9f1a83178d8a9a (patch) | |
| tree | 974f18f6f48e31a249ae87245b159e412dfcdad2 /drivers/iio | |
| parent | 42351035dc1530363b323b4583307e866dc4464e (diff) | |
| download | linux-0d31d91e614505803a0788b92f9f1a83178d8a9a.tar.gz linux-0d31d91e614505803a0788b92f9f1a83178d8a9a.tar.bz2 linux-0d31d91e614505803a0788b92f9f1a83178d8a9a.zip | |
iio: light: cm3605: Make use of the helper function dev_err_probe()
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>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20211008092656.421-1-caihuoqing@baidu.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/iio')
| -rw-r--r-- | drivers/iio/light/cm3605.c | 29 |
1 files changed, 15 insertions, 14 deletions
diff --git a/drivers/iio/light/cm3605.c b/drivers/iio/light/cm3605.c index 4c83953672be..3e7fb16ab1f6 100644 --- a/drivers/iio/light/cm3605.c +++ b/drivers/iio/light/cm3605.c @@ -159,6 +159,7 @@ static int cm3605_probe(struct platform_device *pdev) struct device_node *np = dev->of_node; enum iio_chan_type ch_type; u32 rset; + int irq; int ret; indio_dev = devm_iio_device_alloc(dev, sizeof(*cm3605)); @@ -195,12 +196,9 @@ static int cm3605_probe(struct platform_device *pdev) cm3605->aout = devm_iio_channel_get(dev, "aout"); if (IS_ERR(cm3605->aout)) { - if (PTR_ERR(cm3605->aout) == -ENODEV) { - dev_err(dev, "no ADC, deferring...\n"); - return -EPROBE_DEFER; - } - dev_err(dev, "failed to get AOUT ADC channel\n"); - return PTR_ERR(cm3605->aout); + ret = PTR_ERR(cm3605->aout); + ret = (ret == -ENODEV) ? -EPROBE_DEFER : ret; + return dev_err_probe(dev, ret, "failed to get AOUT ADC channel\n"); } ret = iio_get_channel_type(cm3605->aout, &ch_type); if (ret < 0) @@ -211,10 +209,10 @@ static int cm3605_probe(struct platform_device *pdev) } cm3605->vdd = devm_regulator_get(dev, "vdd"); - if (IS_ERR(cm3605->vdd)) { - dev_err(dev, "failed to get VDD regulator\n"); - return PTR_ERR(cm3605->vdd); - } + if (IS_ERR(cm3605->vdd)) + return dev_err_probe(dev, PTR_ERR(cm3605->vdd), + "failed to get VDD regulator\n"); + ret = regulator_enable(cm3605->vdd); if (ret) { dev_err(dev, "failed to enable VDD regulator\n"); @@ -223,13 +221,16 @@ static int cm3605_probe(struct platform_device *pdev) cm3605->aset = devm_gpiod_get(dev, "aset", GPIOD_OUT_HIGH); if (IS_ERR(cm3605->aset)) { - dev_err(dev, "no ASET GPIO\n"); - ret = PTR_ERR(cm3605->aset); + ret = dev_err_probe(dev, PTR_ERR(cm3605->aset), "no ASET GPIO\n"); goto out_disable_vdd; } - ret = devm_request_threaded_irq(dev, platform_get_irq(pdev, 0), - cm3605_prox_irq, NULL, 0, "cm3605", indio_dev); + irq = platform_get_irq(pdev, 0); + if (irq < 0) + return dev_err_probe(dev, irq, "failed to get irq\n"); + + ret = devm_request_threaded_irq(dev, irq, cm3605_prox_irq, + NULL, 0, "cm3605", indio_dev); if (ret) { dev_err(dev, "unable to request IRQ\n"); goto out_disable_aset; |