linux-kernel - [PATCH 3.16 155/306] ACPI / APEI: Fix incorrect return value of ghes

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Message-ID: <lsq.1487198500.263132633@decadent.org.uk>
Date:   Wed, 15 Feb 2017 22:41:40 +0000
From:   Ben Hutchings <ben@...adent.org.uk>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:     akpm@...ux-foundation.org,
        "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
        "Tyler Baicar" <tbaicar@...eaurora.org>,
        "Punit Agrawal" <punit.agrawal@....com>,
        "Borislav Petkov" <bp@...e.de>
Subject: [PATCH 3.16 155/306] ACPI / APEI: Fix incorrect return value of
 ghes_proc()

3.16.40-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Punit Agrawal <punit.agrawal@....com>

commit 806487a8fc8f385af75ed261e9ab658fc845e633 upstream.

Although ghes_proc() tests for errors while reading the error status,
it always return success (0). Fix this by propagating the return
value.

Fixes: d334a49113a4a33 (ACPI, APEI, Generic Hardware Error Source memory error support)
Signed-of-by: Punit Agrawal <punit.agrawa.@....com>
Tested-by: Tyler Baicar <tbaicar@...eaurora.org>
Reviewed-by: Borislav Petkov <bp@...e.de>
[ rjw: Subject ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 drivers/acpi/apei/ghes.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/acpi/apei/ghes.c
+++ b/drivers/acpi/apei/ghes.c
@@ -679,7 +679,7 @@ static int ghes_proc(struct ghes *ghes)
 	ghes_do_proc(ghes, ghes->estatus);
 out:
 	ghes_clear_estatus(ghes);
-	return 0;
+	return rc;
 }
 
 static void ghes_add_timer(struct ghes *ghes)