diff --git a/drivers/pci/hotplug/cpqphp_core.c b/drivers/pci/hotplug/cpqphp_core.c
index f184d1d2ecbebfc9b7f1d27371d8b12af77610f1..cb7818ffd5cf4a0bb655785dff3a3ff1c8be6b1c 100644
--- a/drivers/pci/hotplug/cpqphp_core.c
+++ b/drivers/pci/hotplug/cpqphp_core.c
@@ -1075,13 +1075,12 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 	/* make our own copy of the pci bus structure,
 	 * as we like tweaking it a lot */
-	ctrl->pci_bus = kmalloc(sizeof(*ctrl->pci_bus), GFP_KERNEL);
+	ctrl->pci_bus = kmemdup(pdev->bus, sizeof(*ctrl->pci_bus), GFP_KERNEL);
 	if (!ctrl->pci_bus) {
 		err("out of memory\n");
 		rc = -ENOMEM;
 		goto err_free_ctrl;
 	}
-	memcpy(ctrl->pci_bus, pdev->bus, sizeof(*ctrl->pci_bus));
 
 	ctrl->bus = pdev->bus->number;
 	ctrl->rev = pdev->revision;