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authorMagnus Damm <magnus@valinux.co.jp>2005-10-30 14:59:48 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2005-10-30 17:37:13 -0800
commit5d35704028d09a183448daceab5dcb94f21a3645 (patch)
tree2b1b4416c162c458a26d601412d09a7ed9c21b84 /arch/i386
parent6c180d94abdcfb77a2fe4275bd03687fa159acd7 (diff)
downloadop-kernel-dev-5d35704028d09a183448daceab5dcb94f21a3645.zip
op-kernel-dev-5d35704028d09a183448daceab5dcb94f21a3645.tar.gz
[PATCH] i386: srat on non-acpi hw fix
This patch adds a check for the return value of acpi_find_root_pointer(). Without this patch systems without ACPI support such as QEMU crashes when booting a NUMA kernel with CONFIG_ACPI_SRAT=y. Signed-off-by: Magnus Damm <magnus@valinux.co.jp> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/i386')
-rw-r--r--arch/i386/kernel/srat.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/i386/kernel/srat.c b/arch/i386/kernel/srat.c
index 516bf56..8de658d 100644
--- a/arch/i386/kernel/srat.c
+++ b/arch/i386/kernel/srat.c
@@ -327,7 +327,12 @@ int __init get_memcfg_from_srat(void)
int tables = 0;
int i = 0;
- acpi_find_root_pointer(ACPI_PHYSICAL_ADDRESSING, rsdp_address);
+ if (ACPI_FAILURE(acpi_find_root_pointer(ACPI_PHYSICAL_ADDRESSING,
+ rsdp_address))) {
+ printk("%s: System description tables not found\n",
+ __FUNCTION__);
+ goto out_err;
+ }
if (rsdp_address->pointer_type == ACPI_PHYSICAL_POINTER) {
printk("%s: assigning address to rsdp\n", __FUNCTION__);
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