ACPI/APEI: Add parameter check before error injection

[firefly-linux-kernel-4.4.55.git] / kernel / resource.c

diff --git a/kernel/resource.c b/kernel/resource.c
index d7386986e10e31edda59fcb15c4b83b236d52993..77bf11a86c7d27ffde2d0cf3545d0110937a5a02 100644 (file)
--- a/kernel/resource.c
+++ b/kernel/resource.c
@@ -409,6 +409,7 @@ int __weak page_is_ram(unsigned long pfn)
 {
        return walk_system_ram_range(pfn, 1, NULL, __is_ram) == 1;
 }
+EXPORT_SYMBOL_GPL(page_is_ram);
 
 void __weak arch_remove_reservations(struct resource *avail)
 {