diff --git a/drivers/net/arcnet/com90xx.c b/drivers/net/arcnet/com90xx.c
index 0d9b45ff1bb21bc7878c251c63082a5400a7d93b..81f90c4703ae266eb6c894bf636059ee389d4d6e 100644
--- a/drivers/net/arcnet/com90xx.c
+++ b/drivers/net/arcnet/com90xx.c
@@ -433,7 +433,7 @@ static void __init com90xx_probe(void)
 	kfree(iomem);
 }
 
-static int check_mirror(unsigned long addr, size_t size)
+static int __init check_mirror(unsigned long addr, size_t size)
 {
 	void __iomem *p;
 	int res = -1;