Hi, Here is a patch to fix zero size kmalloc problem that was reported by Hiroyuki Kamezawa. Thanks, Kenji Kaneshige --- Hiroyuki Kamezawa reported the problem that pci_acpi_scan_root() of ia64 might call kmalloc_node() with zero size. Currently ia64's pci_acpi_scan_root() assumes that _CRS method of root bridge has at least one resource window. But, the root bridges that has no resource window must be taken into account. Signed-off-by: Kenji Kaneshige <kaneshige.kenji@xxxxxxxxxxxxxx> --- arch/ia64/pci/pci.c | 11 +++++++---- 1 files changed, 7 insertions(+), 4 deletions(-) Index: linux-2.6.22-rc1/arch/ia64/pci/pci.c =================================================================== --- linux-2.6.22-rc1.orig/arch/ia64/pci/pci.c +++ linux-2.6.22-rc1/arch/ia64/pci/pci.c @@ -354,10 +354,13 @@ pci_acpi_scan_root(struct acpi_device *d acpi_walk_resources(device->handle, METHOD_NAME__CRS, count_window, &windows); - controller->window = kmalloc_node(sizeof(*controller->window) * windows, - GFP_KERNEL, controller->node); - if (!controller->window) - goto out2; + if (windows) { + controller->window = + kmalloc_node(sizeof(*controller->window) * windows, + GFP_KERNEL, controller->node); + if (!controller->window) + goto out2; + } name = kmalloc(16, GFP_KERNEL); if (!name) - To unsubscribe from this list: send the line "unsubscribe linux-ia64" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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