The patch titled
Char: stallion, fix fail paths
has been added to the -mm tree. Its filename is
char-stallion-fix-fail-paths.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: Char: stallion, fix fail paths
From: Jiri Slaby <jirislaby@xxxxxxxxx>
Release everything what was allocated and check return value of isa probing.
Release only ISA boards in module exit, since pci have their own
pci-probing-remove.
Signed-off-by: Jiri Slaby <jirislaby@xxxxxxxxx>
Cc: Alan Cox <alan@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
drivers/char/stallion.c | 81 ++++++++++++++++++++++++--------------
1 files changed, 52 insertions(+), 29 deletions(-)
diff -puN drivers/char/stallion.c~char-stallion-fix-fail-paths drivers/char/stallion.c
--- a/drivers/char/stallion.c~char-stallion-fix-fail-paths
+++ a/drivers/char/stallion.c
@@ -143,6 +143,8 @@ static struct stlbrd *stl_brds[STL_MAXB
* Not really much here!
*/
#define BRD_FOUND 0x1
+#define STL_PROBED 0x2
+
/*
* Define the port structure istate flags. These set of flags are
@@ -2390,6 +2392,7 @@ static int __devinit stl_pciprobe(struct
goto err_fr;
}
brdp->brdtype = brdtype;
+ brdp->state |= STL_PROBED;
/*
* We have all resources from the board, so let's setup the actual
@@ -4679,6 +4682,28 @@ static void stl_sc26198otherisr(struct s
}
}
+static void stl_free_isabrds(void)
+{
+ struct stlbrd *brdp;
+ unsigned int i;
+
+ for (i = 0; i < stl_nrbrds; i++) {
+ if ((brdp = stl_brds[i]) == NULL || (brdp->state & STL_PROBED))
+ continue;
+
+ free_irq(brdp->irq, brdp);
+
+ stl_cleanup_panels(brdp);
+
+ release_region(brdp->ioaddr1, brdp->iosize1);
+ if (brdp->iosize2 > 0)
+ release_region(brdp->ioaddr2, brdp->iosize2);
+
+ kfree(brdp);
+ stl_brds[i] = NULL;
+ }
+}
+
/*
* Loadable module initialization stuff.
*/
@@ -4686,7 +4711,8 @@ static int __init stallion_module_init(v
{
struct stlbrd *brdp;
struct stlconf conf;
- unsigned int i, retval;
+ unsigned int i;
+ int retval;
printk(KERN_INFO "%s: version %s\n", stl_drvtitle, stl_drvversion);
@@ -4716,12 +4742,14 @@ static int __init stallion_module_init(v
}
retval = pci_register_driver(&stl_pcidriver);
- if (retval)
+ if (retval && stl_nrbrds == 0)
goto err;
stl_serial = alloc_tty_driver(STL_MAXBRDS * STL_MAXPORTS);
- if (!stl_serial)
- return -1;
+ if (!stl_serial) {
+ retval = -ENOMEM;
+ goto err_pcidr;
+ }
/*
* Set up a character driver for per board stuff. This is mainly used
@@ -4731,6 +4759,10 @@ static int __init stallion_module_init(v
printk("STALLION: failed to register serial board device\n");
stallion_class = class_create(THIS_MODULE, "staliomem");
+ if (IS_ERR(stallion_class)) {
+ retval = PTR_ERR(stallion_class);
+ goto err_reg;
+ }
for (i = 0; i < 4; i++)
class_device_create(stallion_class, NULL,
MKDEV(STL_SIOMEMMAJOR, i), NULL,
@@ -4747,20 +4779,29 @@ static int __init stallion_module_init(v
stl_serial->flags = TTY_DRIVER_REAL_RAW;
tty_set_operations(stl_serial, &stl_ops);
- if (tty_register_driver(stl_serial)) {
- put_tty_driver(stl_serial);
+ retval = tty_register_driver(stl_serial);
+ if (retval) {
printk("STALLION: failed to register serial driver\n");
- return -1;
+ goto err_clsdev;
}
return 0;
+err_clsdev:
+ for (i = 0; i < 4; i++)
+ class_device_destroy(stallion_class, MKDEV(STL_SIOMEMMAJOR, i));
+ class_destroy(stallion_class);
+err_reg:
+ unregister_chrdev(STL_SIOMEMMAJOR, "staliomem");
+ put_tty_driver(stl_serial);
+err_pcidr:
+ pci_unregister_driver(&stl_pcidriver);
+ stl_free_isabrds();
err:
return retval;
}
static void __exit stallion_module_exit(void)
{
- struct stlbrd *brdp;
int i;
pr_debug("cleanup_module()\n");
@@ -4774,13 +4815,9 @@ static void __exit stallion_module_exit(
* a hangup on every open port - to try to flush out any processes
* hanging onto ports.
*/
- i = tty_unregister_driver(stl_serial);
+ tty_unregister_driver(stl_serial);
put_tty_driver(stl_serial);
- if (i) {
- printk("STALLION: failed to un-register tty driver, "
- "errno=%d\n", -i);
- return;
- }
+
for (i = 0; i < 4; i++)
class_device_destroy(stallion_class, MKDEV(STL_SIOMEMMAJOR, i));
if ((i = unregister_chrdev(STL_SIOMEMMAJOR, "staliomem")))
@@ -4790,21 +4827,7 @@ static void __exit stallion_module_exit(
pci_unregister_driver(&stl_pcidriver);
- for (i = 0; (i < stl_nrbrds); i++) {
- if ((brdp = stl_brds[i]) == NULL)
- continue;
-
- free_irq(brdp->irq, brdp);
-
- stl_cleanup_panels(brdp);
-
- release_region(brdp->ioaddr1, brdp->iosize1);
- if (brdp->iosize2 > 0)
- release_region(brdp->ioaddr2, brdp->iosize2);
-
- kfree(brdp);
- stl_brds[i] = NULL;
- }
+ stl_free_isabrds();
}
module_init(stallion_module_init);
_
Patches currently in -mm which might be from jirislaby@xxxxxxxxx are
mxser-correct-tty-driver-name.patch
pci-mxser-pci-refcounts.patch
mxser-make-an-experimental-clone.patch
char-mxser_new-correct-include-file.patch
char-mxser_new-upgrade-to-191.patch
char-mxser_new-rework-to-allow-dynamic-structs.patch
char-mxser_new-use-__devinit-macros.patch
char-mxser_new-pci_request_region-for-pci-regions.patch
char-mxser_new-check-request_region-retvals.patch
char-mxser_new-kill-unneeded-memsets.patch
char-mxser_new-revert-spin_lock-changes.patch
char-mxser_new-remove-request-for-testers-line.patch
char-mxser_new-debug-printk-dependent-on-debug.patch
char-mxser_new-alter-license-terms.patch
char-mxser_new-code-upside-down.patch
char-mxser_new-cmspar-is-defined.patch
char-remove-unneded-termbits-redefinitions-mxser_new.patch
char-mxser_new-eliminate-tty-ldisc-deref.patch
char-mxser_new-testbit-for-bit-testing.patch
char-mxser_new-correct-fail-paths.patch
char-mxser_new-dont-check-tty_unregister-retval.patch
char-mxser_new-compress-isa-finding.patch
char-mxser_new-register-tty-devices-on-the-fly.patch
char-mxser_new-compact-structures-round2.patch
char-mxser_new-reverse-if-else-paths-patch.patch
char-mxser_new-comments-cleanup.patch
char-mxser_new-correct-intr-handler-proto.patch
char-mxser_new-delete-ttys-and-termios.patch
char-mxser_new-pci-probing.patch
char-mxser_new-clean-macros.patch
maintainers-add-me-to-isicom-mxser.patch
mxser_new-correct-tty-driver-name.patch
char-stallion-use-pr_debug-macro.patch
char-stallion-remove-unneeded-casts.patch
char-stallion-kill-typedefs.patch
char-stallion-move-init-deinit.patch
char-stallion-uninline-functions.patch
char-stallion-mark-functions-as-init.patch
char-stallion-remove-many-prototypes.patch
char-isicom-expand-function.patch
char-isicom-rename-init-function.patch
char-isicom-remove-isa-code.patch
char-isicom-remove-unneeded-memset.patch
char-isicom-move-to-tty_register_device.patch
char-isicom-use-pci_request_region.patch
char-isicom-check-kmalloc-retval.patch
char-isicom-use-completion.patch
char-isicom-simplify-timer.patch
char-isicom-remove-cvs-stuff.patch
char-isicom-fix-tty-index-check.patch
char-sx-convert-to-pci-probing.patch
char-sx-use-kcalloc.patch
char-sx-mark-functions-as-devinit.patch
char-sx-use-eisa-probing.patch
char-sx-ifdef-isa-code.patch
char-sx-lock-boards-struct.patch
char-sx-remove-duplicite-code.patch
char-sx-whitespace-cleanup.patch
char-sx-simplify-timer-logic.patch
char-sx-fix-return-in-module-init.patch
char-sx-use-pci_iomap.patch
char-sx-request-regions.patch
char-stallion-convert-to-pci-probing.patch
char-stallion-prints-cleanup.patch
char-stallion-implement-fail-paths.patch
char-stallion-correct-__init-macros.patch
char-stallion-functions-cleanup.patch
char-stallion-fix-fail-paths.patch
char-stallion-brd-struct-locking.patch
char-stallion-remove-syntactic-sugar.patch
char-stallion-variables-cleanup.patch
char-stallion-use-dynamic-dev.patch
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