The patch titled
acpi: pass correct parameter to acpi_processor_ffh_cstate_probe_cpu()
has been added to the -mm tree. Its filename is
acpi-pass-correct-parameter-to-acpi_processor_ffh_cstate_probe_cpu.patch
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------------------------------------------------------
Subject: acpi: pass correct parameter to acpi_processor_ffh_cstate_probe_cpu()
From: Wu Fengguang <fengguang.wu@xxxxxxxxx>
This fixes a NULL pointer dereference bug introduced by 6e911954cac ("use
smp_call_function_single() in arch/x86/kernel/acpi/cstate.c").
Signed-off-by: Wu Fengguang <fengguang.wu@xxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>
Cc: Venkatesh Pallipadi <venkatesh.pallipadi@xxxxxxxxx>
Cc: Len Brown <len.brown@xxxxxxxxx>
Cc: Zhao Yakui <yakui.zhao@xxxxxxxxx>
Cc: Rusty Russell <rusty@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/x86/kernel/acpi/cstate.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN arch/x86/kernel/acpi/cstate.c~acpi-pass-correct-parameter-to-acpi_processor_ffh_cstate_probe_cpu arch/x86/kernel/acpi/cstate.c
--- a/arch/x86/kernel/acpi/cstate.c~acpi-pass-correct-parameter-to-acpi_processor_ffh_cstate_probe_cpu
+++ a/arch/x86/kernel/acpi/cstate.c
@@ -137,7 +137,7 @@ int acpi_processor_ffh_cstate_probe(unsi
/* Run acpi_processor_ffh_cstate_probe_cpu() on the target CPU */
retval = smp_call_function_single(cpu,
- acpi_processor_ffh_cstate_probe_cpu, cx, 1);
+ acpi_processor_ffh_cstate_probe_cpu, &cxcc, 1);
if (retval == 0) {
retval = cxcc.retval;
if (retval == 0) {
_
Patches currently in -mm which might be from fengguang.wu@xxxxxxxxx are
origin.patch
linux-next.patch
acpi-pass-correct-parameter-to-acpi_processor_ffh_cstate_probe_cpu.patch
ramfs-add-support-for-mode=-mount-option.patch
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