From: Greg KH <gregkh@suse.de>
To: linux-kernel@vger.kernel.org, linux-pci@atrey.karlin.mff.cuni.cz
Cc: keithmo@exmsft.com
Subject: [PATCH] cpqphp: fix oops during unload without probe
Date: Mon, 27 Jun 2005 22:32:55 -0700 [thread overview]
Message-ID: <1119936775691@kroah.com> (raw)
In-Reply-To: <1119936774843@kroah.com>
[PATCH] cpqphp: fix oops during unload without probe
drivers/pci/hotplug/cpqphp_core.c calls cpqphp_event_start_thread()
in one_time_init(), which is called whenever the hardware is probed.
Unfortunately, cpqphp_event_stop_thread() is *always* called when
the module is unloaded. If the hardware is never probed, then
cpqphp_event_stop_thread() tries to manipulate a couple of
uninitialized mutexes.
Signed-off-by: Keith Moore <keithmo@exmsft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
commit 4002307d2b563a6ab317ca4d7eb1d201a6673d37
tree a95936bd9f9180eeaac3c41fae0baaf878486a2d
parent 70549ad9cf074e12f12cdc931b29b2616dfb873a
author Keith Moore <keithmo@exmsft.com> Thu, 02 Jun 2005 12:42:37 +0200
committer Greg Kroah-Hartman <gregkh@suse.de> Mon, 27 Jun 2005 21:52:46 -0700
drivers/pci/hotplug/cpqphp_core.c | 5 +++--
1 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/pci/hotplug/cpqphp_core.c b/drivers/pci/hotplug/cpqphp_core.c
--- a/drivers/pci/hotplug/cpqphp_core.c
+++ b/drivers/pci/hotplug/cpqphp_core.c
@@ -60,6 +60,7 @@ static void __iomem *smbios_start;
static void __iomem *cpqhp_rom_start;
static int power_mode;
static int debug;
+static int initialized;
#define DRIVER_VERSION "0.9.8"
#define DRIVER_AUTHOR "Dan Zink <dan.zink@compaq.com>, Greg Kroah-Hartman <greg@kroah.com>"
@@ -1271,7 +1272,6 @@ static int one_time_init(void)
{
int loop;
int retval = 0;
- static int initialized = 0;
if (initialized)
return 0;
@@ -1441,7 +1441,8 @@ static void __exit unload_cpqphpd(void)
}
// Stop the notification mechanism
- cpqhp_event_stop_thread();
+ if (initialized)
+ cpqhp_event_stop_thread();
//unmap the rom address
if (cpqhp_rom_start)
next prev parent reply other threads:[~2005-06-28 5:34 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-06-28 5:30 [GIT PATCH] PCI patches for 2.6.12 Greg KH
2005-06-28 5:32 ` [PATCH] PCI Allow OutOfRange PIRQ table address Greg KH
2005-06-28 5:32 ` [PATCH] pci: remove deprecates Greg KH
2005-06-28 5:32 ` Greg KH
2005-06-28 5:32 ` [PATCH] acpi bridge hotadd: Make pcibios_fixup_bus() hot-plug safe Greg KH
2005-06-28 5:32 ` [PATCH] acpi bridge hotadd: ACPI based root bridge hot-add Greg KH
2005-06-28 5:32 ` [PATCH] acpi bridge hotadd: Fix pci_enable_device() for p2p bridges Greg KH
2005-06-28 5:32 ` [PATCH] acpi bridge hotadd: Link newly created pci child bus to its parent on creation Greg KH
2005-06-28 5:32 ` [PATCH] acpi bridge hotadd: Prevent duplicate bus numbers when scanning PCI bridge Greg KH
2005-06-28 5:32 ` [PATCH] acpi bridge hotadd: Take the PCI lock when modifying pci bus or device lists Greg KH
2005-06-28 5:32 ` [PATCH] acpi bridge hotadd: Make the PCI remove routines safe for failed hot-plug Greg KH
2005-06-28 5:32 ` [PATCH] acpi bridge hotadd: Remove hot-plugged devices that could not be allocated resources Greg KH
2005-06-28 5:32 ` [PATCH] acpi bridge hotadd: Read bridge resources when fixing up the bus Greg KH
2005-06-28 5:32 ` [PATCH] acpi hotplug: clean up notify handlers on acpiphp unload Greg KH
2005-06-28 5:32 ` [PATCH] acpi bridge hotadd: Allow ACPI .add and .start operations to be done independently Greg KH
2005-06-28 5:32 ` [PATCH] acpi hotplug: convert acpiphp to use generic resource code Greg KH
2005-06-28 5:32 ` [PATCH] acpi bridge hotadd: Export the interface to get PCI id for an ACPI handle Greg KH
2005-06-28 5:32 ` [PATCH] acpi hotplug: fix slot power-down problem with acpiphp Greg KH
2005-06-28 5:32 ` [PATCH] acpi hotplug: decouple slot power state changes from physical hotplug Greg KH
2005-06-28 5:32 ` [PATCH] acpi hotplug: aCPI based root bridge hot-add Greg KH
2005-06-28 5:32 ` [PATCH] ACPI based I/O APIC hot-plug: ia64 support Greg KH
2005-06-28 5:32 ` [PATCH] ACPI based I/O APIC hot-plug: add interfaces Greg KH
2005-06-28 5:32 ` [PATCH] PCI: fix-pci-mmap-on-ppc-and-ppc64.patch Greg KH
2005-06-28 5:32 ` [PATCH] ACPI based I/O APIC hot-plug: acpiphp support Greg KH
2005-06-28 5:32 ` [PATCH] PCI: DMA bursting advice Greg KH
2005-06-28 5:32 ` Greg KH [this message]
2005-06-28 5:32 ` [PATCH] PCI: clean up the MSI code a bit Greg KH
2005-06-28 5:32 ` [PATCH] PCI: fix up errors after dma bursting patch and CONFIG_PCI=n Greg KH
2005-06-28 5:32 ` [PATCH] PCI: add proper MCFG table parsing to ACPI core Greg KH
2005-06-28 5:32 ` [PATCH] PCI: make drivers use the pci shutdown callback instead of the driver core callback Greg KH
2005-06-28 5:32 ` [PATCH] PCI: use the MCFG table to properly access pci devices (i386) Greg KH
2005-06-28 5:32 ` [PATCH] PCI: use the MCFG table to properly access pci devices (x86-64) Greg KH
2005-06-29 16:33 ` [PATCH] acpi bridge hotadd: ACPI based root bridge hot-add Grant Grundler
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