From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753743Ab1CEQur (ORCPT ); Sat, 5 Mar 2011 11:50:47 -0500 Received: from smtp-03.mandic.com.br ([200.225.81.143]:54430 "EHLO smtp-03.mandic.com.br" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753436Ab1CEQtV (ORCPT ); Sat, 5 Mar 2011 11:49:21 -0500 From: Cesar Eduardo Barros To: linux-mm@kvack.org Cc: Andrew Morton , Hugh Dickins , KAMEZAWA Hiroyuki , Minchan Kim , Jens Axboe , linux-kernel@vger.kernel.org, Eric B Munson , Cesar Eduardo Barros Subject: [PATCHv2 20/24] sys_swapon: simplify error flow in setup_swap_map_and_extents Date: Sat, 5 Mar 2011 13:42:21 -0300 Message-Id: <1299343345-3984-21-git-send-email-cesarb@cesarb.net> X-Mailer: git-send-email 1.7.4 In-Reply-To: <1299343345-3984-1-git-send-email-cesarb@cesarb.net> References: <1299343345-3984-1-git-send-email-cesarb@cesarb.net> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Since there is no cleanup to do, there is no reason to jump to a label. Return directly instead. Signed-off-by: Cesar Eduardo Barros Tested-by: Eric B Munson Acked-by: Eric B Munson --- mm/swapfile.c | 19 +++++-------------- 1 files changed, 5 insertions(+), 14 deletions(-) diff --git a/mm/swapfile.c b/mm/swapfile.c index 26eb84a..5f6df81 100644 --- a/mm/swapfile.c +++ b/mm/swapfile.c @@ -1998,7 +1998,6 @@ static int setup_swap_map_and_extents(struct swap_info_struct *p, sector_t *span) { int i; - int error; unsigned int nr_good_pages; int nr_extents; @@ -2006,10 +2005,8 @@ static int setup_swap_map_and_extents(struct swap_info_struct *p, for (i = 0; i < swap_header->info.nr_badpages; i++) { unsigned int page_nr = swap_header->info.badpages[i]; - if (page_nr == 0 || page_nr > swap_header->info.last_page) { - error = -EINVAL; - goto bad_swap; - } + if (page_nr == 0 || page_nr > swap_header->info.last_page) + return -EINVAL; if (page_nr < maxpages) { swap_map[page_nr] = SWAP_MAP_BAD; nr_good_pages--; @@ -2021,22 +2018,16 @@ static int setup_swap_map_and_extents(struct swap_info_struct *p, p->max = maxpages; p->pages = nr_good_pages; nr_extents = setup_swap_extents(p, span); - if (nr_extents < 0) { - error = nr_extents; - goto bad_swap; - } + if (nr_extents < 0) + return nr_extents; nr_good_pages = p->pages; } if (!nr_good_pages) { printk(KERN_WARNING "Empty swap-file\n"); - error = -EINVAL; - goto bad_swap; + return -EINVAL; } return nr_extents; - -bad_swap: - return error; } SYSCALL_DEFINE2(swapon, const char __user *, specialfile, int, swap_flags) -- 1.7.4