Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 6ad1ccc1 authored by Jiri Slaby's avatar Jiri Slaby Committed by Linus Torvalds
Browse files

Char: cyclades, tty_register_device separately for each device 



Do not register all tty devices at the init time, delay it for the time until
some device is found.

Signed-off-by: default avatarJiri Slaby <jirislaby@gmail.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 9dacf3b2

drivers/char/cyclades.c

+19 −1
Original line number Diff line number Diff line
@@ -4841,6 +4841,9 @@ static int __init cy_detect_isa(void) 
			cy_isa_irq);

		printk("%d channels starting from port %d.\n",

			cy_isa_nchan, cy_next_channel);

		for (j = cy_next_channel;

				j < cy_next_channel + cy_isa_nchan; j++)

			tty_register_device(cy_serial_driver, j, NULL);

		cy_next_channel += cy_isa_nchan;

	}

	return nboard;
@@ -4948,6 +4951,8 @@ static int __devinit cy_init_Ze(unsigned long cy_pci_phys0, 


	printk("%d channels starting from port %d.\n",

		cy_pci_nchan, cy_next_channel);

	for (j = cy_next_channel; j < cy_next_channel + cy_pci_nchan; j++)

		tty_register_device(cy_serial_driver, j, &pdev->dev);

	cy_next_channel += cy_pci_nchan;



	return 0;
@@ -5115,6 +5120,9 @@ static int __devinit cy_pci_probe(struct pci_dev *pdev, 
			(int)cy_pci_irq);

		printk("%d channels starting from port %d.\n",

			cy_pci_nchan, cy_next_channel);

		for (j = cy_next_channel;

				j < cy_next_channel + cy_pci_nchan; j++)

			tty_register_device(cy_serial_driver, j, &pdev->dev);



		cy_next_channel += cy_pci_nchan;

	} else if (device_id == PCI_DEVICE_ID_CYCLOM_Z_Lo) {
@@ -5282,6 +5290,9 @@ static int __devinit cy_pci_probe(struct pci_dev *pdev, 


		printk("%d channels starting from port %d.\n",

				cy_pci_nchan, cy_next_channel);

		for (j = cy_next_channel;

				j < cy_next_channel + cy_pci_nchan; j++)

			tty_register_device(cy_serial_driver, j, &pdev->dev);

		cy_next_channel += cy_pci_nchan;

	}
@@ -5346,6 +5357,9 @@ static void __devexit cy_pci_release(struct pci_dev *pdev) 
		cy_port[i].line = -1;

		cy_port[i].magic = -1;

	}

	for (i = cinfo->first_line; i < cinfo->first_line +

			cinfo->nports; i++)

		tty_unregister_device(cy_serial_driver, i);

#endif

}
@@ -5479,7 +5493,7 @@ static int __init cy_init(void) 
	cy_serial_driver->init_termios = tty_std_termios;

	cy_serial_driver->init_termios.c_cflag =

	    B9600 | CS8 | CREAD | HUPCL | CLOCAL;

	cy_serial_driver->flags = TTY_DRIVER_REAL_RAW;

	cy_serial_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;

	tty_set_operations(cy_serial_driver, &cy_ops);



	retval = tty_register_driver(cy_serial_driver);
@@ -5555,6 +5569,10 @@ static void __exit cy_cleanup_module(void) 
#endif /* CONFIG_CYZ_INTR */

				)

				free_irq(cy_card[i].irq, &cy_card[i]);

			for (e1 = cy_card[i].first_line;

					e1 < cy_card[i].first_line +

					cy_card[i].nports; e1++)

				tty_unregister_device(cy_serial_driver, e1);

		}

	}

} /* cy_cleanup_module */