diff --git a/sys/dev/eisa/eisaconf.c b/sys/dev/eisa/eisaconf.c
index 2441af5b9db6..689efb6ad15c 100644
--- a/sys/dev/eisa/eisaconf.c
+++ b/sys/dev/eisa/eisaconf.c
@@ -315,7 +315,7 @@ eisa_find_ioaddr(struct eisa_device *e_dev, int rid)
 }
 
 static int
-eisa_read_ivar(device_t dev, device_t child, int which, u_long *result)
+eisa_read_ivar(device_t dev, device_t child, int which, uintptr_t *result)
 {
 	struct eisa_device *e_dev = device_get_ivars(child);
 	struct irq_node *irq;
diff --git a/sys/dev/mca/mca_bus.c b/sys/dev/mca/mca_bus.c
index bc3c0e52b5ab..d3f93131a234 100644
--- a/sys/dev/mca/mca_bus.c
+++ b/sys/dev/mca/mca_bus.c
@@ -432,7 +432,7 @@ mca_probe_nomatch (device_t dev, device_t child)
 }
 
 static int
-mca_read_ivar (device_t dev, device_t child, int which, u_long * result)
+mca_read_ivar (device_t dev, device_t child, int which, uintptr_t * result)
 {
 	struct mca_device *		m_dev = device_get_ivars(child);
 
diff --git a/sys/dev/spibus/spibus.c b/sys/dev/spibus/spibus.c
index 33205ea64f1d..a0c0380398d2 100644
--- a/sys/dev/spibus/spibus.c
+++ b/sys/dev/spibus/spibus.c
@@ -112,7 +112,7 @@ spibus_child_pnpinfo_str(device_t bus, device_t child, char *buf,
 }
 
 static int
-spibus_read_ivar(device_t bus, device_t child, int which, u_char *result)
+spibus_read_ivar(device_t bus, device_t child, int which, u_int *result)
 {
 	struct spibus_ivar *devi = SPIBUS_IVAR(child);