--- linux-2.4.19.vanilla/drivers/char/sonypi.c	Sat Aug  3 02:39:43 2002
+++ linux-2.4.19/drivers/char/sonypi.c	Wed Oct 30 21:08:23 2002
@@ -233,8 +233,10 @@
 
 /* Set brightness, hue etc */
 static void sonypi_set(u8 fn, u8 v) {
-	
-	wait_on_command(0, sonypi_call3(0x90, fn, v));
+	unsigned int n = 10;
+
+	while(--n && sonypi_call3(0x90, fn, v))
+		udelay(1);
 }
 
 /* Tests if the camera is ready */