From 35cb05e5bdac209cfdfafbe50d89ee7069cb6237 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Mon, 2 Apr 2012 18:31:53 -0700 Subject: [PATCH] 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: Yinghai Lu Signed-off-by: Bjorn Helgaas --- arch/x86/pci/acpi.c | 21 ++++----------------- 1 file changed, 4 insertions(+), 17 deletions(-) diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c index 23e7361b1747..8a17b23f8c84 100644 --- a/arch/x86/pci/acpi.c +++ b/arch/x86/pci/acpi.c @@ -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) -- 2.39.5