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-rw-r--r--include/linux/ioport.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/ioport.h b/include/linux/ioport.h
index 9afa30f9346f..60ca6a49839c 100644
--- a/include/linux/ioport.h
+++ b/include/linux/ioport.h
@@ -338,7 +338,7 @@ static inline bool resource_union(const struct resource *r1, const struct resour
* Check if this resource is added to a resource tree or detached. Caller is
* responsible for not racing assignment.
*/
-static inline bool resource_assigned(struct resource *res)
+static inline bool resource_assigned(const struct resource *res)
{
return res->parent;
}