diff --git a/drivers/net/irda/kingsun-sir.c b/drivers/net/irda/kingsun-sir.c
index bdd5c97..4e5101a 100644
--- a/drivers/net/irda/kingsun-sir.c
+++ b/drivers/net/irda/kingsun-sir.c
@@ -509,12 +509,12 @@
 	spin_lock_init(&kingsun->lock);
 
 	/* Allocate input buffer */
-	kingsun->in_buf = (__u8 *)kmalloc(kingsun->max_rx, GFP_KERNEL);
+	kingsun->in_buf = kmalloc(kingsun->max_rx, GFP_KERNEL);
 	if (!kingsun->in_buf)
 		goto free_mem;
 
 	/* Allocate output buffer */
-	kingsun->out_buf = (__u8 *)kmalloc(KINGSUN_FIFO_SIZE, GFP_KERNEL);
+	kingsun->out_buf = kmalloc(KINGSUN_FIFO_SIZE, GFP_KERNEL);
 	if (!kingsun->out_buf)
 		goto free_mem;