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 <[EMAIL PROTECTED]>
---
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)
-
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