From: Magnus Damm Date: Sun, 30 Oct 2005 22:59:48 +0000 (-0800) Subject: [PATCH] i386: srat on non-acpi hw fix X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=5d35704028d09a183448daceab5dcb94f21a3645;p=GitHub%2Fmt8127%2Fandroid_kernel_alcatel_ttab.git [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 Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/arch/i386/kernel/srat.c b/arch/i386/kernel/srat.c index 516bf5653b02..8de658db8146 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__);