65a828bab1
The global list of GPIO devices is never modified or accessed from atomic context so it's fine to protect it using a mutex. Add a new global lock dedicated to the gpio_devices list and use it whenever accessing or modifying it. Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
33 lines
585 B
C
33 lines
585 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef GPIOLIB_SYSFS_H
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#define GPIOLIB_SYSFS_H
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struct gpio_device;
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#ifdef CONFIG_GPIO_SYSFS
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int gpiochip_sysfs_register(struct gpio_device *gdev);
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int gpiochip_sysfs_register_all(void);
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void gpiochip_sysfs_unregister(struct gpio_device *gdev);
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#else
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static inline int gpiochip_sysfs_register(struct gpio_device *gdev)
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{
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return 0;
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}
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static inline int gpiochip_sysfs_register_all(void)
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{
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return 0;
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}
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static inline void gpiochip_sysfs_unregister(struct gpio_device *gdev)
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{
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}
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#endif /* CONFIG_GPIO_SYSFS */
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#endif /* GPIOLIB_SYSFS_H */
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