From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail-wg0-f44.google.com ([74.125.82.44]:38091 "EHLO mail-wg0-f44.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757608Ab2ILM4T (ORCPT ); Wed, 12 Sep 2012 08:56:19 -0400 From: Peter Senna Tschudin To: Mauro Carvalho Chehab Cc: kernel-janitors@vger.kernel.org, linux-media@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 7/8] drivers/media/platform/davinci/vpbe.c: Removes useless kfree() Date: Wed, 12 Sep 2012 14:55:58 +0200 Message-Id: <1347454564-5178-2-git-send-email-peter.senna@gmail.com> Sender: linux-media-owner@vger.kernel.org List-ID: From: Peter Senna Tschudin Remove useless kfree() and clean up code related to the removal. The semantic patch that finds this problem is as follows: (http://coccinelle.lip6.fr/) // @r exists@ position p1,p2; expression x; @@ if (x@p1 == NULL) { ... kfree@p2(x); ... return ...; } @unchanged exists@ position r.p1,r.p2; expression e <= r.x,x,e1; iterator I; statement S; @@ if (x@p1 == NULL) { ... when != I(x,...) S when != e = e1 when != e += e1 when != e -= e1 when != ++e when != --e when != e++ when != e-- when != &e kfree@p2(x); ... return ...; } @ok depends on unchanged exists@ position any r.p1; position r.p2; expression x; @@ ... when != true x@p1 == NULL kfree@p2(x); @depends on !ok && unchanged@ position r.p2; expression x; @@ *kfree@p2(x); // Signed-off-by: Peter Senna Tschudin --- drivers/media/platform/davinci/vpbe.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/media/platform/davinci/vpbe.c b/drivers/media/platform/davinci/vpbe.c index c4a82a1..1125a87 100644 --- a/drivers/media/platform/davinci/vpbe.c +++ b/drivers/media/platform/davinci/vpbe.c @@ -771,7 +771,6 @@ static int vpbe_initialize(struct device *dev, struct vpbe_device *vpbe_dev) return 0; vpbe_fail_amp_register: - kfree(vpbe_dev->amp); vpbe_fail_sd_register: kfree(vpbe_dev->encoders); vpbe_fail_v4l2_device: