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iio: multiplexer: iio-mux: 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>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: Peter Rosin <peda@axentia.se>
Link: https://lore.kernel.org/r/20200829064726.26268-18-krzk@kernel.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Krzysztof Kozlowski 2020-08-29 08:47:26 +02:00 committed by Jonathan Cameron
parent 0d81951dad
commit c10eb9b22c
1 changed files with 3 additions and 5 deletions
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8
drivers/iio/multiplexer/iio-mux.c
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@ -354,11 +354,9 @@ static int mux_probe(struct platform_device *pdev)
return -ENODEV;
parent = devm_iio_channel_get(dev, "parent");
if (IS_ERR(parent)) {
if (PTR_ERR(parent) != -EPROBE_DEFER)
dev_err(dev, "failed to get parent channel\n");
return PTR_ERR(parent);
}
if (IS_ERR(parent))
return dev_err_probe(dev, PTR_ERR(parent),
"failed to get parent channel\n");
sizeof_ext_info = iio_get_channel_ext_info_count(parent);
if (sizeof_ext_info) {