diff options
| author | Timmy Li <lixiaoping3@huawei.com> | 2017-05-22 16:48:28 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-04-13 19:48:06 +0200 |
| commit | bca3e27b9262c4966cbffac94f3063aa75f4b2e7 (patch) | |
| tree | 20d2506db41ae3012203f7b7ff92000e0fe2ceef /arch/arm64 | |
| parent | 78b336afffe6dcafb242179dd6a68d8fbe355944 (diff) | |
ARM64: PCI: Fix struct acpi_pci_root_ops allocation failure path
[ 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>
Diffstat (limited to 'arch/arm64')
| -rw-r--r-- | arch/arm64/kernel/pci.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/arm64/kernel/pci.c b/arch/arm64/kernel/pci.c index 409abc45bdb6..1b3eb67edefb 100644 --- a/arch/arm64/kernel/pci.c +++ b/arch/arm64/kernel/pci.c @@ -175,8 +175,10 @@ struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root) 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) { |