gpio: gpiolib: make gpio_bus_type const
Now that the driver core can properly handle constant struct bus_type, move the gpio_bus_type variable to be a constant structure as well, placing it into read-only memory which can not be modified at runtime. Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
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@ -63,7 +63,7 @@ static int gpio_bus_match(struct device *dev, struct device_driver *drv)
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return 1;
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}
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static struct bus_type gpio_bus_type = {
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static const struct bus_type gpio_bus_type = {
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.name = "gpio",
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.match = gpio_bus_match,
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};
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