diff --git a/drivers/staging/unisys/visorbus/visorchipset.c b/drivers/staging/unisys/visorbus/visorchipset.c
index 61877722b1da..9f0ec171025a 100644
--- a/drivers/staging/unisys/visorbus/visorchipset.c
+++ b/drivers/staging/unisys/visorbus/visorchipset.c
@@ -66,7 +66,7 @@ static u32 dump_vhba_bus;
 static int
 visorchipset_open(struct inode *inode, struct file *file)
 {
-	unsigned minor_number = iminor(inode);
+	unsigned int minor_number = iminor(inode);
 
 	if (minor_number)
 		return -ENODEV;