The patch titled
fix kmalloc(0) in arch/ia64/pci/pci.c
has been added to the -mm tree. Its filename is
fix-kmalloc0-in-arch-ia64-pci-pcic.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: fix kmalloc(0) in arch/ia64/pci/pci.c
From: Kenji Kaneshige <kaneshige.kenji@xxxxxxxxxxxxxx>
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>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
Cc: "Luck, Tony" <tony.luck@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/ia64/pci/pci.c | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)
diff -puN arch/ia64/pci/pci.c~fix-kmalloc0-in-arch-ia64-pci-pcic arch/ia64/pci/pci.c
--- a/arch/ia64/pci/pci.c~fix-kmalloc0-in-arch-ia64-pci-pcic
+++ a/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)
_
Patches currently in -mm which might be from kaneshige.kenji@xxxxxxxxxxxxxx are
fix-kmalloc0-in-arch-ia64-pci-pcic.patch
-
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
