drivers/net/wireless/wl12xx/wl12xx_platform_data.c

   1 #include <linux/module.h>
   2 #include <linux/err.h>
   3 #include <linux/wl12xx.h>
   4
   5 static const struct wl12xx_platform_data *platform_data;
   6
   7 int __init wl12xx_set_platform_data(const struct wl12xx_platform_data *data)
   8 {
   9         if (platform_data)
  10                 return -EBUSY;
  11         if (!data)
  12                 return -EINVAL;
  13
  14         platform_data = kmemdup(data, sizeof(*data), GFP_KERNEL);
  15         if (!platform_data)
  16                 return -ENOMEM;
  17
  18         return 0;
  19 }
  20
  21 const struct wl12xx_platform_data *wl12xx_get_platform_data(void)
  22 {
  23         if (!platform_data)
  24                 return ERR_PTR(-ENODEV);
  25
  26         return platform_data;
  27 }
  28 EXPORT_SYMBOL(wl12xx_get_platform_data);