From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758198AbcAPBb0 (ORCPT ); Fri, 15 Jan 2016 20:31:26 -0500 Received: from youngberry.canonical.com ([91.189.89.112]:35775 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752916AbcAPADE (ORCPT ); Fri, 15 Jan 2016 19:03:04 -0500 From: Kamal Mostafa To: linux-kernel@vger.kernel.org, stable@vger.kernel.org, kernel-team@lists.ubuntu.com Cc: Geert Uytterhoeven , David Howells , Al Viro , Kamal Mostafa Subject: [PATCH 4.2.y-ckt 036/305] FS-Cache: Add missing initialization of ret in cachefiles_write_page() Date: Fri, 15 Jan 2016 15:57:30 -0800 Message-Id: <1452902519-2754-37-git-send-email-kamal@canonical.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1452902519-2754-1-git-send-email-kamal@canonical.com> References: <1452902519-2754-1-git-send-email-kamal@canonical.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Extended-Stable: 4.2 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 4.2.8-ckt2 -stable review patch. If anyone has any objections, please let me know. ---8<------------------------------------------------------------ From: Geert Uytterhoeven commit cf89752645e47d86ba8a4157f4b121fcb33434c5 upstream. fs/cachefiles/rdwr.c: In function ‘cachefiles_write_page’: fs/cachefiles/rdwr.c:882: warning: ‘ret’ may be used uninitialized in this function If the jump to label "error" is taken, "ret" will indeed be uninitialized, and random stack data may be printed by the debug code. Fixes: 102f4d900c9c8f5e ("FS-Cache: Handle a write to the page immediately beyond the EOF marker") Signed-off-by: Geert Uytterhoeven Signed-off-by: David Howells Signed-off-by: Al Viro Signed-off-by: Kamal Mostafa --- fs/cachefiles/rdwr.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/cachefiles/rdwr.c b/fs/cachefiles/rdwr.c index e62faae..3ce6467 100644 --- a/fs/cachefiles/rdwr.c +++ b/fs/cachefiles/rdwr.c @@ -885,7 +885,7 @@ int cachefiles_write_page(struct fscache_storage *op, struct page *page) loff_t pos, eof; size_t len; void *data; - int ret; + int ret = -ENOBUFS; ASSERT(op != NULL); ASSERT(page != NULL); -- 1.9.1