linux-kernel - [PATCH v2 1/2] ACPI, APEI: Fix leaked resources

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Message-Id: <1457452332-2673-2-git-send-email-johunt@akamai.com>
Date:	Tue,  8 Mar 2016 10:52:11 -0500
From:	Joshua Hunt <johunt@...mai.com>
To:	gong.chen@...el.com, linux-acpi@...r.kernel.org, rjw@...ysocki.net,
	lenb@...nel.org, ying.huang@...el.com
Cc:	tony.luck@...el.com, linux-kernel@...r.kernel.org,
	Joshua Hunt <johunt@...mai.com>
Subject: [PATCH v2 1/2] ACPI, APEI: Fix leaked resources

We leak the NVS and arch resources (if used), in apei_resources_request.
They are allocated to make sure we exclude them from the APEI resources,
but they are never freed at the end of the function. Free them now.

Signed-off-by: Josh Hunt <johunt@...mai.com>
---
 drivers/acpi/apei/apei-base.c |    6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/acpi/apei/apei-base.c b/drivers/acpi/apei/apei-base.c
index a2c8d7a..da370e1 100644
--- a/drivers/acpi/apei/apei-base.c
+++ b/drivers/acpi/apei/apei-base.c
@@ -536,7 +536,8 @@ int apei_resources_request(struct apei_resources *resources,
 		goto err_unmap_ioport;
 	}
 
-	return 0;
+	goto arch_res_fini;
+
 err_unmap_ioport:
 	list_for_each_entry(res, &resources->ioport, list) {
 		if (res == res_bak)
@@ -551,7 +552,8 @@ err_unmap_iomem:
 		release_mem_region(res->start, res->end - res->start);
 	}
 arch_res_fini:
-	apei_resources_fini(&arch_res);
+	if (arch_apei_filter_addr)
+		apei_resources_fini(&arch_res);
 nvs_res_fini:
 	apei_resources_fini(&nvs_resources);
 	return rc;
-- 
1.7.9.5