PCI: Free released resource after coalescing

release_resource() doesn't actually free the resource or resource list
entry so free the resource list entry to avoid a leak.

Closes: https://lore.kernel.org/r/878r9sga1t.fsf@kernel.org/
Fixes: e54223275ba1 ("PCI: Release resource invalidated by coalescing")
Link: https://lore.kernel.org/r/20230906110846.225369-1-ross.lagerwall@citrix.com
Reported-by: Kalle Valo <kvalo@kernel.org>
Tested-by: Kalle Valo <kvalo@kernel.org>
Signed-off-by: Ross Lagerwall <ross.lagerwall@citrix.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: stable@vger.kernel.org      # v5.16+

diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index ab2a4a3..7955345 100644 (file)
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -997,6 +997,7 @@ static int pci_register_host_bridge(struct pci_host_bridge *bridge)
                res = window->res;
                if (!res->flags && !res->start && !res->end) {
                        release_resource(res);
+                       resource_list_destroy_entry(window);
                        continue;
                }