This is a note to let you know that I've just added the patch titled
ARM64: PCI: Fix struct acpi_pci_root_ops allocation failure path
to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...
The filename of the patch is: arm64-pci-fix-struct-acpi_pci_root_ops-allocation-failure-path.patch and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.
From foo@baz Mon Apr 9 17:09:24 CEST 2018
From: Timmy Li lixiaoping3@huawei.com Date: Mon, 22 May 2017 16:48:28 +0100 Subject: ARM64: PCI: Fix struct acpi_pci_root_ops allocation failure path
From: Timmy Li lixiaoping3@huawei.com
[ Upstream commit 717902cc93118119a6fce7765da6cf2786987418 ]
Commit 093d24a20442 ("arm64: PCI: Manage controller-specific data on per-controller basis") added code to allocate ACPI PCI root_ops dynamically on a per host bridge basis but failed to update the corresponding memory allocation failure path in pci_acpi_scan_root() leading to a potential memory leakage.
Fix it by adding the required kfree call.
Fixes: 093d24a20442 ("arm64: PCI: Manage controller-specific data on per-controller basis") Reviewed-by: Tomasz Nowicki tn@semihalf.com Signed-off-by: Timmy Li lixiaoping3@huawei.com [lorenzo.pieralisi@arm.com: refactored code, rewrote commit log] Signed-off-by: Lorenzo Pieralisi lorenzo.pieralisi@arm.com CC: Will Deacon will.deacon@arm.com CC: Bjorn Helgaas bhelgaas@google.com Signed-off-by: Catalin Marinas catalin.marinas@arm.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/arm64/kernel/pci.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
--- a/arch/arm64/kernel/pci.c +++ b/arch/arm64/kernel/pci.c @@ -175,8 +175,10 @@ struct pci_bus *pci_acpi_scan_root(struc return NULL;
root_ops = kzalloc_node(sizeof(*root_ops), GFP_KERNEL, node); - if (!root_ops) + if (!root_ops) { + kfree(ri); return NULL; + }
ri->cfg = pci_acpi_setup_ecam_mapping(root); if (!ri->cfg) {
Patches currently in stable-queue which might be from lixiaoping3@huawei.com are
queue-4.9/arm64-pci-fix-struct-acpi_pci_root_ops-allocation-failure-path.patch