x86/PCI: Clear host bridge aperture struct resource

Use kzalloc() so the struct resource doesn't contain garbage in
fields we don't initialize.

[bhelgaas: changelog]
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: x86@kernel.org

1 files changed, 1 insertions, 2 deletions

diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c
index 505acdd6d600..192397c98606 100644
--- a/arch/x86/pci/acpi.c
+++ b/arch/x86/pci/acpi.c
@@ -305,7 +305,6 @@ setup_resource(struct acpi_resource *acpi_res, void *data)
         res->flags = flags;
         res->start = start;
         res->end = end;
-        res->child = NULL;
 
         if (!pci_use_crs) {
                 dev_printk(KERN_DEBUG, &info->bridge->dev,
@@ -434,7 +433,7 @@ probe_pci_root_info(struct pci_root_info *info, struct acpi_device *device,
 
         size = sizeof(*info->res) * info->res_num;
         info->res_num = 0;
-        info->res = kmalloc(size, GFP_KERNEL);
+        info->res = kzalloc(size, GFP_KERNEL);
         if (!info->res)
                 return;