[driver model] Change symbol exports to GPL only in platform.c.

Signed-off-by: Patrick Mochel <mochel@digitalimplant.org>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

drivers/base/platform.c

@@ -298,13 +298,13 @@ u64 dma_get_required_mask(struct device *dev)
 	}
 	return mask & *dev->dma_mask;
 }
-EXPORT_SYMBOL(dma_get_required_mask);
+EXPORT_SYMBOL_GPL(dma_get_required_mask);
 #endif
 
-EXPORT_SYMBOL(platform_bus);
-EXPORT_SYMBOL(platform_bus_type);
-EXPORT_SYMBOL(platform_device_register);
-EXPORT_SYMBOL(platform_device_register_simple);
-EXPORT_SYMBOL(platform_device_unregister);
-EXPORT_SYMBOL(platform_get_irq);
-EXPORT_SYMBOL(platform_get_resource);
+EXPORT_SYMBOL_GPL(platform_bus);
+EXPORT_SYMBOL_GPL(platform_bus_type);
+EXPORT_SYMBOL_GPL(platform_device_register);
+EXPORT_SYMBOL_GPL(platform_device_register_simple);
+EXPORT_SYMBOL_GPL(platform_device_unregister);
+EXPORT_SYMBOL_GPL(platform_get_irq);
+EXPORT_SYMBOL_GPL(platform_get_resource);