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[PATCH] i386: srat on non-acpi hw fix

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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>
This commit is contained in:
Magnus Damm 2005-10-30 14:59:48 -08:00 committed by Linus Torvalds
parent 6c180d94ab
commit 5d35704028
1 changed files with 6 additions and 1 deletions
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7
arch/i386/kernel/srat.c
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@ -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__);