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Date: Sat, 4 Nov 2006 18:27:12 +0100 (CET)
From: Jiri Slaby <jirislaby@...il.com>
To: Andrew Morton <akpm@...l.org>
Cc: <linux-kernel@...r.kernel.org>
Subject: [PATCH 6/6] Char: stallion, use dynamic dev
stallion, use dynamic dev
Use dynamic tty device registering depending on board's port count.
(i -> retval change is relevant, since gcc complains about signedness of i)
Signed-off-by: Jiri Slaby <jirislaby@...il.com>
---
commit f5387c4764732e6e830152bee8c546f69843a2a7
tree 9d8e98202750f685a58680b87f1273df18615874
parent 4f8d6cfde402d83afad0231d03bfa721fb6b8589
author Jiri Slaby <jirislaby@...il.com> Fri, 03 Nov 2006 00:07:32 +0100
committer Jiri Slaby <jirislaby@...il.com> Fri, 03 Nov 2006 00:07:32 +0100
drivers/char/stallion.c | 33 +++++++++++++++++++++++++++------
1 files changed, 27 insertions(+), 6 deletions(-)
diff --git a/drivers/char/stallion.c b/drivers/char/stallion.c
index 3bbc86f..e8ca041 100644
--- a/drivers/char/stallion.c
+++ b/drivers/char/stallion.c
@@ -2350,7 +2350,7 @@ static int __devinit stl_pciprobe(struct
const struct pci_device_id *ent)
{
struct stlbrd *brdp;
- unsigned int brdtype = ent->driver_data;
+ unsigned int i, brdtype = ent->driver_data;
int brdnr, retval = -ENODEV;
if ((pdev->class >> 8) == PCI_CLASS_STORAGE_IDE)
@@ -2411,6 +2411,10 @@ static int __devinit stl_pciprobe(struct
pci_set_drvdata(pdev, brdp);
+ for (i = 0; i < brdp->nrports; i++)
+ tty_register_device(stl_serial,
+ brdp->brdnr * STL_MAXPORTS + i, &pdev->dev);
+
return 0;
err_null:
stl_brds[brdp->brdnr] = NULL;
@@ -2423,6 +2427,7 @@ err:
static void __devexit stl_pciremove(struct pci_dev *pdev)
{
struct stlbrd *brdp = pci_get_drvdata(pdev);
+ unsigned int i;
free_irq(brdp->irq, brdp);
@@ -2432,6 +2437,10 @@ static void __devexit stl_pciremove(stru
if (brdp->iosize2 > 0)
release_region(brdp->ioaddr2, brdp->iosize2);
+ for (i = 0; i < brdp->nrports; i++)
+ tty_unregister_device(stl_serial,
+ brdp->brdnr * STL_MAXPORTS + i);
+
stl_brds[brdp->brdnr] = NULL;
kfree(brdp);
}
@@ -4695,7 +4704,7 @@ static int __init stallion_module_init(v
{
struct stlbrd *brdp;
struct stlconf conf;
- unsigned int i;
+ unsigned int i, j;
int retval;
printk(KERN_INFO "%s: version %s\n", stl_drvtitle, stl_drvversion);
@@ -4722,6 +4731,9 @@ static int __init stallion_module_init(v
if (stl_brdinit(brdp))
kfree(brdp);
else {
+ for (j = 0; j < brdp->nrports; j++)
+ tty_register_device(stl_serial,
+ brdp->brdnr * STL_MAXPORTS + j, NULL);
stl_brds[brdp->brdnr] = brdp;
stl_nrbrds = i + 1;
}
@@ -4763,7 +4775,7 @@ static int __init stallion_module_init(v
stl_serial->type = TTY_DRIVER_TYPE_SERIAL;
stl_serial->subtype = SERIAL_TYPE_NORMAL;
stl_serial->init_termios = stl_deftermios;
- stl_serial->flags = TTY_DRIVER_REAL_RAW;
+ stl_serial->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
tty_set_operations(stl_serial, &stl_ops);
retval = tty_register_driver(stl_serial);
@@ -4789,7 +4801,9 @@ err:
static void __exit stallion_module_exit(void)
{
- int i;
+ struct stlbrd *brdp;
+ unsigned int i, j;
+ int retval;
pr_debug("cleanup_module()\n");
@@ -4802,14 +4816,21 @@ static void __exit stallion_module_exit(
* a hangup on every open port - to try to flush out any processes
* hanging onto ports.
*/
+ for (i = 0; i < stl_nrbrds; i++) {
+ if ((brdp = stl_brds[i]) == NULL || (brdp->state & STL_PROBED))
+ continue;
+ for (j = 0; j < brdp->nrports; j++)
+ tty_unregister_device(stl_serial,
+ brdp->brdnr * STL_MAXPORTS + j);
+ }
tty_unregister_driver(stl_serial);
put_tty_driver(stl_serial);
for (i = 0; i < 4; i++)
class_device_destroy(stallion_class, MKDEV(STL_SIOMEMMAJOR, i));
- if ((i = unregister_chrdev(STL_SIOMEMMAJOR, "staliomem")))
+ if ((retval = unregister_chrdev(STL_SIOMEMMAJOR, "staliomem")))
printk("STALLION: failed to un-register serial memory device, "
- "errno=%d\n", -i);
+ "errno=%d\n", -retval);
class_destroy(stallion_class);
pci_unregister_driver(&stl_pcidriver);
-
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