Hi Linus, Greg, Stable-team,
There is a bug in the sc1200wdt code where the pnp driver
is not being unregistered in certain error situations.
I think it's worth having the fix in 2.6.19 and the
next stable version of 2.6.18.
So please pull from 'master' branch of
git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog.git
or if master.kernel.org hasn't synced up yet:
master.kernel.org:/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog.git
This will update the following files:
drivers/char/watchdog/sc1200wdt.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
with these Changes:
Author: Akinobu Mita <[email protected]>
Date: Sun Oct 29 03:43:19 2006 +0900
[WATCHDOG] sc1200wdt.c pnp unregister fix.
If no devices found or invalid parameter is specified,
scl200wdt_pnp_driver is left unregistered.
It breaks global list of pnp drivers.
Signed-off-by: Akinobu Mita <[email protected]>
Signed-off-by: Wim Van Sebroeck <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
The Changes can also be looked at on:
http://www.kernel.org/git/?p=linux/kernel/git/wim/linux-2.6-watchdog.git;a=summary
For completeness, I added the overal diff below.
Greetings,
Wim.
================================================================================
diff --git a/drivers/char/watchdog/sc1200wdt.c b/drivers/char/watchdog/sc1200wdt.c
index d8d0f28..e323983 100644
--- a/drivers/char/watchdog/sc1200wdt.c
+++ b/drivers/char/watchdog/sc1200wdt.c
@@ -392,7 +392,7 @@ #endif
if (io == -1) {
printk(KERN_ERR PFX "io parameter must be specified\n");
ret = -EINVAL;
- goto out_clean;
+ goto out_pnp;
}
#if defined CONFIG_PNP
@@ -405,7 +405,7 @@ #endif
if (!request_region(io, io_len, SC1200_MODULE_NAME)) {
printk(KERN_ERR PFX "Unable to register IO port %#x\n", io);
ret = -EBUSY;
- goto out_clean;
+ goto out_pnp;
}
ret = sc1200wdt_probe();
@@ -435,6 +435,11 @@ out_rbt:
out_io:
release_region(io, io_len);
+out_pnp:
+#if defined CONFIG_PNP
+ if (isapnp)
+ pnp_unregister_driver(&scl200wdt_pnp_driver);
+#endif
goto out_clean;
}
-
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