From: Ashwin Chaugule <ashwin.chaugule@linaro.org>
Date: Fri, 23 Oct 2015 09:02:52 +0000 (-0400)
Subject: ACPI / CPPC: Fix potential memory leak
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=4219853aef645d29b122daa8a8b7bd792f1cc7c9;p=sagit-ice-cold%2Fkernel_xiaomi_msm8998.git

ACPI / CPPC: Fix potential memory leak

Commit 337aadff8e45 (ACPI: Introduce CPU performance controls using CPPC)
leads to the following static checker warning:

        drivers/acpi/cppc_acpi.c:527 acpi_cppc_processor_probe()
        warn: overwrite may leak 'cpc_ptr'

Fix the warning by removing the bogus per-CPU pointer dereference.

Fixes: 337aadff8e45 (ACPI: Introduce CPU performance controls using CPPC)
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Ashwin Chaugule <ashwin.chaugule@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---

diff --git a/drivers/acpi/cppc_acpi.c b/drivers/acpi/cppc_acpi.c
index 2ed55161bca5..3c083d2cc434 100644
--- a/drivers/acpi/cppc_acpi.c
+++ b/drivers/acpi/cppc_acpi.c
@@ -524,7 +524,6 @@ int acpi_cppc_processor_probe(struct acpi_processor *pr)
 	return 0;
 
 out_free:
-	cpc_ptr = per_cpu(cpc_desc_ptr, pr->id);
 	kfree(cpc_ptr);
 
 out_buf_free: