[IRDA]: Do not do pointless kmalloc return value cast in KingSun driver

kmalloc() returns a void pointer, so there is no need to cast it in
drivers/net/irda/kingsun-sir.c::kingsun_probe().

Signed-off-by: Jesper Juhl <[e-mail]>
Signed-off-by: David S. Miller <[e-mail]>

drivers/net/irda/kingsun-sir.c

···
 	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;