From: Wu Fengguang <fengguang.wu@intel.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
ACPI Devel Maling List <linux-acpi@vger.kernel.org>,
Rusty Russell <rusty@rustcorp.com.au>,
Ingo Molnar <mingo@elte.hu>,
Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>,
Len Brown <len.brown@intel.com>,
Zhao Yakui <yakui.zhao@intel.com>
Subject: [PATCH] ACPI: pass correct parameter to acpi_processor_ffh_cstate_probe_cpu()
Date: Thu, 12 Mar 2009 15:45:24 +0800 [thread overview]
Message-ID: <20090312074524.GA15992@localhost> (raw)
This fixes a NULL pointer dereference bug introduced by 6e911954cac.
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
---
diff --git a/arch/x86/kernel/acpi/cstate.c b/arch/x86/kernel/acpi/cstate.c
index 6626e8c..b866b87 100644
--- a/arch/x86/kernel/acpi/cstate.c
+++ b/arch/x86/kernel/acpi/cstate.c
@@ -137,7 +137,7 @@ int acpi_processor_ffh_cstate_probe(unsigned int cpu,
/* 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) {
next reply other threads:[~2009-03-12 7:46 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-12 7:45 Wu Fengguang [this message]
2009-03-16 2:59 ` [PATCH] ACPI: pass correct parameter to acpi_processor_ffh_cstate_probe_cpu() Len Brown
2009-03-16 4:43 ` Wu Fengguang
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