From: Jiang Liu <liuj97@gmail.com>
To: Yinghai Lu <yinghai@kernel.org>, Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: Jiang Liu <jiang.liu@huawei.com>,
Bjorn Helgaas <bhelgaas@google.com>,
Ashok Raj <ashok.raj@intel.com>, Jiang Liu <liuj97@gmail.com>,
Keping Chen <chenkeping@huawei.com>,
linux-pci@vger.kernel.org, linux-acpi@vger.kernel.org
Subject: [PATCH 01/11] PCI: Fix device reference count leakage in pci_dev_present()
Date: Fri, 23 Mar 2012 22:58:17 +0800 [thread overview]
Message-ID: <1332514707-9673-2-git-send-email-jiang.liu@huawei.com> (raw)
In-Reply-To: <1332514707-9673-1-git-send-email-jiang.liu@huawei.com>
This patch fixes a pci device reference count leakage issue in function
pci_dev_present().
Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
---
drivers/pci/search.c | 10 +++++-----
1 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/drivers/pci/search.c b/drivers/pci/search.c
index 9d75dc8..b572730 100644
--- a/drivers/pci/search.c
+++ b/drivers/pci/search.c
@@ -338,13 +338,13 @@ int pci_dev_present(const struct pci_device_id *ids)
WARN_ON(in_interrupt());
while (ids->vendor || ids->subvendor || ids->class_mask) {
found = pci_get_dev_by_id(ids, NULL);
- if (found)
- goto exit;
+ if (found) {
+ pci_dev_put(found);
+ return 1;
+ }
ids++;
}
-exit:
- if (found)
- return 1;
+
return 0;
}
EXPORT_SYMBOL(pci_dev_present);
--
1.7.5.4
next prev parent reply other threads:[~2012-03-23 14:58 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-23 14:58 [PATCH 00/11] Enhancements and bugfixes to PCI hotplug subsystem Jiang Liu
2012-03-23 14:58 ` Jiang Liu [this message]
2012-03-23 14:58 ` [RFC PATCH 02/11] PCI: introduce pci_bus_get()/pci_bus_put() to hide implementation details Jiang Liu
2012-03-23 14:58 ` [RFC PATCH 03/11] PCI: clean up root bridge related logic in acpiphp driver Jiang Liu
2012-03-23 14:58 ` [RFC PATCH 04/11] ACPI,PCI: fix race windows caused by alloc_acpi_hotplug_work() Jiang Liu
2012-03-23 14:58 ` [RFC PATCH 05/11] PCI: Add notification interfaces for PCI root/bus/device hotplug events Jiang Liu
2012-03-23 14:58 ` [RFC PATCH 06/11] ACPI,PCI: update ACPI<->PCI binding information when pci hotplug event happens Jiang Liu
2012-03-23 14:58 ` [RFC PATCH 07/11] ACPI,PCI: update ACPI slots when PCI " Jiang Liu
2012-03-23 14:58 ` [RFC PATCH 08/11] PCI: Introduce recursive mutex to serialize PCI hotplug operations Jiang Liu
2012-03-23 14:58 ` [RFC PATCH 09/11] PCI: serialize hotplug operations triggered by PCI hotplug sysfs interfaces Jiang Liu
2012-03-23 14:58 ` [RFC PATCH 10/11] PCI,ACPI: serialize hotplug operations triggered by ACPI subsystem Jiang Liu
2012-03-23 14:58 ` [RFC PATCH 11/11] PCI: Serialize hotplug operations triggered by acpiphp driver Jiang Liu
2012-03-27 3:33 ` [PATCH 00/11] Enhancements and bugfixes to PCI hotplug subsystem Kenji Kaneshige
2012-03-27 14:31 ` Jiang Liu
2012-03-30 4:15 ` Kenji Kaneshige
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