Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753454AbbBBPSF (ORCPT ); Mon, 2 Feb 2015 10:18:05 -0500 Received: from mout.web.de ([212.227.15.3]:63826 "EHLO mout.web.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752571AbbBBPSD (ORCPT ); Mon, 2 Feb 2015 10:18:03 -0500 Message-ID: <54CF9514.70502@users.sourceforge.net> Date: Mon, 02 Feb 2015 16:17:40 +0100 From: SF Markus Elfring User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.4.0 MIME-Version: 1.0 To: Alasdair Kergon , Mike Snitzer , Neil Brown , dm-devel@redhat.com, linux-raid@vger.kernel.org CC: LKML , kernel-janitors@vger.kernel.org, Julia Lawall Subject: [PATCH 1/3] dm snapshot: Deletion of unnecessary checks before the function call "vfree" References: <5307CAA2.8060406@users.sourceforge.net> <530A086E.8010901@users.sourceforge.net> <530A72AA.3000601@users.sourceforge.net> <530B5FB6.6010207@users.sourceforge.net> <530C5E18.1020800@users.sourceforge.net> <530CD2C4.4050903@users.sourceforge.net> <530CF8FF.8080600@users.sourceforge.net> <530DD06F.4090703@users.sourceforge.net> <5317A59D.4@users.sourceforge.net> <54CF93BB.40206@users.sourceforge.net> In-Reply-To: <54CF93BB.40206@users.sourceforge.net> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-Provags-ID: V03:K0:h4LSXhxI32BnjenkjC2J9MUPzMTYC1WPSmQ7GK2pkeGpgTQqmxS triVUZicKcyIUvPq3/fV9KxsWJ2nPC9h0dK74MujXpYy7juDKStBUDH0Sczn/EDZyGQu+RB Ubb2MEu7uEOSEdFjbCFEaznLxRmAGCp3IzqBZG9D4Huzegp5zBf+XZdbgMTj78PznLtLSrB jQFm/P64tLoZ3f61QOn8w== X-UI-Out-Filterresults: notjunk:1; Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1462 Lines: 55 From: Markus Elfring Date: Mon, 2 Feb 2015 14:38:29 +0100 The vfree() function performs also input parameter validation. Thus the test around the call is not needed. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring --- drivers/md/dm-snap-persistent.c | 14 ++++---------- 1 file changed, 4 insertions(+), 10 deletions(-) diff --git a/drivers/md/dm-snap-persistent.c b/drivers/md/dm-snap-persistent.c index d6e8817..808b841 100644 --- a/drivers/md/dm-snap-persistent.c +++ b/drivers/md/dm-snap-persistent.c @@ -200,16 +200,11 @@ err_area: static void free_area(struct pstore *ps) { - if (ps->area) - vfree(ps->area); + vfree(ps->area); ps->area = NULL; - - if (ps->zero_area) - vfree(ps->zero_area); + vfree(ps->zero_area); ps->zero_area = NULL; - - if (ps->header_area) - vfree(ps->header_area); + vfree(ps->header_area); ps->header_area = NULL; } @@ -605,8 +600,7 @@ static void persistent_dtr(struct dm_exception_store *store) free_area(ps); /* Allocated in persistent_read_metadata */ - if (ps->callbacks) - vfree(ps->callbacks); + vfree(ps->callbacks); kfree(ps); } -- 2.2.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/