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gpiolib: Simplify error path in gpiod_get_index() when requesting GPIO

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Simplify error path in the gpiod_get_index() when requesting a GPIO line by:
 - checking for error condition first
 - dropping redundant 'else'

As a result, decrease the indentation level for better readability.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
This commit is contained in:
Andy Shevchenko 2022-02-01 17:27:58 +02:00 committed by Bartosz Golaszewski
parent 322b86e7a7
commit 6105b2e391
1 changed files with 12 additions and 13 deletions
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25
drivers/gpio/gpiolib.c
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@ -3933,20 +3933,19 @@ struct gpio_desc *__must_check gpiod_get_index(struct device *dev,
*/
ret = gpiod_request(desc, con_id ?: devname);
if (ret) {
if (ret == -EBUSY && flags & GPIOD_FLAGS_BIT_NONEXCLUSIVE) {
/*
* This happens when there are several consumers for
* the same GPIO line: we just return here without
* further initialization. It is a bit of a hack.
* This is necessary to support fixed regulators.
*
* FIXME: Make this more sane and safe.
*/
dev_info(dev, "nonexclusive access to GPIO for %s\n", con_id ?: devname);
return desc;
} else {
if (!(ret == -EBUSY && flags & GPIOD_FLAGS_BIT_NONEXCLUSIVE))
return ERR_PTR(ret);
}
/*
* This happens when there are several consumers for
* the same GPIO line: we just return here without
* further initialization. It is a bit of a hack.
* This is necessary to support fixed regulators.
*
* FIXME: Make this more sane and safe.
*/
dev_info(dev, "nonexclusive access to GPIO for %s\n", con_id ?: devname);
return desc;
}
ret = gpiod_configure_flags(desc, con_id, lookupflags, flags);