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Commit 35cb05e5 authored by Yinghai Lu's avatar Yinghai Lu Committed by Bjorn Helgaas
Browse files

x86/PCI: embed pci_sysdata into pci_root_info on ACPI path 



Embed the x86 struct pci_sysdata in the struct pci_root_info so it
will be automatically freed in the remove path.

Signed-off-by: default avatarYinghai Lu <yinghai@kernel.org>
Signed-off-by: default avatarBjorn Helgaas <bhelgaas@google.com>
parent fe05725f

arch/x86/pci/acpi.c

+4 −17
Original line number Diff line number Diff line
@@ -13,6 +13,7 @@ struct pci_root_info { 
	unsigned int res_num;

	struct resource *res;

	int busnum;

	struct pci_sysdata sd;

};



static bool pci_use_crs = true;
@@ -410,26 +411,16 @@ struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_pci_root *root) 
	if (node != -1 && !node_online(node))

		node = -1;



	/* Allocate per-root-bus (not per bus) arch-specific data.

	 * TODO: leak; this memory is never freed.

	 * It's arguable whether it's worth the trouble to care.

	 */

	sd = kzalloc(sizeof(*sd), GFP_KERNEL);

	if (!sd) {

	info = kzalloc(sizeof(*info), GFP_KERNEL);

	if (!info) {

		printk(KERN_WARNING "pci_bus %04x:%02x: "

		       "ignored (out of memory)\n", domain, busnum);

		return NULL;

	}



	sd = &info->sd;

	sd->domain = domain;

	sd->node = node;

	info = kzalloc(sizeof(*info), GFP_KERNEL);

	if (!info) {

		kfree(sd);

		printk(KERN_WARNING "pci_bus %04x:%02x: "

		       "ignored (out of memory)\n", domain, busnum);

		return NULL;

	}

	/*

	 * Maybe the desired pci bus has been already scanned. In such case

	 * it is unnecessary to scan the pci bus with the given domain,busnum.
@@ -442,7 +433,6 @@ struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_pci_root *root) 
		 */

		memcpy(bus->sysdata, sd, sizeof(*sd));

		kfree(info);

		kfree(sd);

	} else {

		probe_pci_root_info(info, device, busnum, domain);
@@ -484,9 +474,6 @@ struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_pci_root *root) 
		}

	}



	if (!bus)

		kfree(sd);



	if (bus && node != -1) {

#ifdef CONFIG_ACPI_NUMA

		if (pxm >= 0)