Merge

drivers/input/keyboard/atkbd.c

@@ -244,6 +244,7 @@ static int atkbd_command(struct atkbd *atkbd, unsigned char *param, int command)
 
 	while (atkbd->cmdcnt && timeout--) udelay(10);
 
+	if (param)
 		for (i = 0; i < receive; i++)
 			param[i] = atkbd->cmdbuf[(receive - 1) - i];