#include <linux/module.h> #include <linux/err.h> #include <linux/wl12xx.h> static const struct wl12xx_platform_data *platform_data; int __init wl12xx_set_platform_data(const struct wl12xx_platform_data *data) { if (platform_data) return -EBUSY; if (!data) return -EINVAL; platform_data = kmemdup(data, sizeof(*data), GFP_KERNEL); if (!platform_data) return -ENOMEM; return 0; } const struct wl12xx_platform_data *wl12xx_get_platform_data(void) { if (!platform_data) return ERR_PTR(-ENODEV); return platform_data; } EXPORT_SYMBOL(wl12xx_get_platform_data);