diff --git a/drivers/bluetooth/btwilink.c b/drivers/bluetooth/btwilink.c
index 24a652f..485281b 100644
--- a/drivers/bluetooth/btwilink.c
+++ b/drivers/bluetooth/btwilink.c
@@ -51,7 +51,7 @@
  */
 struct ti_st {
 	struct hci_dev *hdev;
-	char reg_status;
+	int reg_status;
 	long (*st_write) (struct sk_buff *);
 	struct completion wait_reg_completion;
 };
@@ -83,7 +83,7 @@
  * status.ti_st_open() function will wait for signal from this
  * API when st_register() function returns ST_PENDING.
  */
-static void st_reg_completion_cb(void *priv_data, char data)
+static void st_reg_completion_cb(void *priv_data, int data)
 {
 	struct ti_st *lhst = priv_data;