diff --git a/drivers/staging/ozwpan/ozhcd.c b/drivers/staging/ozwpan/ozhcd.c
index 73d80f21a50f..ed3ffeba12ab 100644
--- a/drivers/staging/ozwpan/ozhcd.c
+++ b/drivers/staging/ozwpan/ozhcd.c
@@ -720,9 +720,9 @@ struct oz_port *oz_hcd_pd_arrived(void *hpd)
  * polled. We release the reference we hold on the PD.
  * Context: softirq
  */
-void oz_hcd_pd_departed(void *hport)
+void oz_hcd_pd_departed(struct oz_port *hport)
 {
-	struct oz_port *port = (struct oz_port *)hport;
+	struct oz_port *port = hport;
 	struct oz_hcd *ozhcd;
 	void *hpd;
 	struct oz_endpoint *ep = NULL;
diff --git a/drivers/staging/ozwpan/ozhcd.h b/drivers/staging/ozwpan/ozhcd.h
index ef3202fa79ff..55e97b1c7079 100644
--- a/drivers/staging/ozwpan/ozhcd.h
+++ b/drivers/staging/ozwpan/ozhcd.h
@@ -7,8 +7,8 @@
 
 int oz_hcd_init(void);
 void oz_hcd_term(void);
-void oz_hcd_pd_departed(void *ctx);
 struct oz_port *oz_hcd_pd_arrived(void *ctx);
+void oz_hcd_pd_departed(struct oz_port *hport);
 void oz_hcd_pd_reset(void *hpd, void *hport);
 
 #endif /* _OZHCD_H */