diff --git a/hal/hal_hci/hal_usb.c b/hal/hal_hci/hal_usb.c
index b9d2984..c8a2c8e 100755
--- a/hal/hal_hci/hal_usb.c
+++ b/hal/hal_hci/hal_usb.c
@@ -26,7 +26,7 @@ int	usb_init_recv_priv(_adapter *padapter, u16 ini_in_buf_sz)
 
 #ifdef PLATFORM_LINUX
 	tasklet_init(&precvpriv->recv_tasklet,
-		     (void(*)(unsigned long))usb_recv_tasklet,
+		     (void(*))usb_recv_tasklet,
 		     (unsigned long)padapter);
 #endif /* PLATFORM_LINUX */