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PCI/IA64: Allocate pci_root_info instead of using stack

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We need to pass around info for release function.

Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-ia64@vger.kernel.org
Signed-off-by: Tony Luck <tony.luck@intel.com>
This commit is contained in:
Yijing Wang 2013-06-06 15:34:49 +08:00 committed by Tony Luck
parent 5cd7595dea
commit 429ac0995e
1 changed files with 38 additions and 26 deletions
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64
arch/ia64/pci/pci.c
View File

@ -331,7 +331,8 @@ struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root)
int domain = root->segment;
int bus = root->secondary.start;
struct pci_controller *controller;
struct pci_root_info info;
struct pci_root_info *info = NULL;
int busnum = root->secondary.start;
struct pci_bus *pbus;
char *name;
int pxm;
@ -348,35 +349,43 @@ struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root)
controller->node = pxm_to_node(pxm);
#endif
INIT_LIST_HEAD(&info.resources);
/* insert busn resource at first */
pci_add_resource(&info.resources, &root->secondary);
acpi_walk_resources(device->handle, METHOD_NAME__CRS, count_window,
&info.res_num);
if (info.res_num) {
info.res =
kzalloc_node(sizeof(*info.res) * info.res_num,
GFP_KERNEL, controller->node);
if (!info.res)
goto out2;
info = kzalloc(sizeof(*info), GFP_KERNEL);
if (!info) {
printk(KERN_WARNING
"pci_bus %04x:%02x: ignored (out of memory)\n",
root->segment, busnum);
goto out2;
}
info.res_offset =
kzalloc_node(sizeof(*info.res_offset) * info.res_num,
GFP_KERNEL, controller->node);
if (!info.res_offset)
INIT_LIST_HEAD(&info->resources);
/* insert busn resource at first */
pci_add_resource(&info->resources, &root->secondary);
acpi_walk_resources(device->handle, METHOD_NAME__CRS, count_window,
&info->res_num);
if (info->res_num) {
info->res =
kzalloc_node(sizeof(*info->res) * info->res_num,
GFP_KERNEL, controller->node);
if (!info->res)
goto out3;
info->res_offset =
kzalloc_node(sizeof(*info->res_offset) * info->res_num,
GFP_KERNEL, controller->node);
if (!info->res_offset)
goto out4;
name = kmalloc(16, GFP_KERNEL);
if (!name)
goto out4;
goto out5;
sprintf(name, "PCI Bus %04x:%02x", domain, bus);
info.bridge = device;
info.controller = controller;
info.name = name;
info.res_num = 0;
info->bridge = device;
info->controller = controller;
info->name = name;
info->res_num = 0;
acpi_walk_resources(device->handle, METHOD_NAME__CRS,
add_window, &info);
add_window, info);
}
/*
* See arch/x86/pci/acpi.c.
@ -385,18 +394,21 @@ struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root)
* such quirk. So we just ignore the case now.
*/
pbus = pci_create_root_bus(NULL, bus, &pci_root_ops, controller,
&info.resources);
&info->resources);
if (!pbus) {
pci_free_resource_list(&info.resources);
pci_free_resource_list(&info->resources);
return NULL;
}
pci_scan_child_bus(pbus);
return pbus;
out5:
kfree(info->res_offset);
out4:
kfree(info.res_offset);
kfree(info->res);
out3:
kfree(info.res);
kfree(info);
out2:
kfree(controller);
out1: