From: Timmy Li <[email protected]>
[ 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 <[email protected]>
Signed-off-by: Timmy Li <[email protected]>
[[email protected]: refactored code, rewrote commit log]
Signed-off-by: Lorenzo Pieralisi <[email protected]>
CC: Will Deacon <[email protected]>
CC: Bjorn Helgaas <[email protected]>
Signed-off-by: Catalin Marinas <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
arch/arm64/kernel/pci.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
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) {
--
2.14.1
