From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B1A152C08D0; Wed, 17 Jun 2026 14:48:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781707729; cv=none; b=XdcbmGoTExSAkSFHfCpqRyTJ7P1dvBT6cY7NgWsfG8ojilc5Dsl1SxgMtMPxuShYY1FtfgRdMtqcCPWjNSMZrU1JvuK51zD+jiH7lLvWkEoxAGJpogZ9EZ5OyvbIZaUcpr9cdTRIVZj/13AaiOG9MmvX8uX7KhqcHny8xvkf+v4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781707729; c=relaxed/simple; bh=VFyqZtISDTRdnQQFLxP8APSXzrGkHCGo4MYo73XDt2U=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=RvUtWbUmTiD4gErZTcnE9GXCrZYIx6jAnjBC/36QXwUvn6R59Fcxnq6Ijz/upwRk/GeJHce/UQHUJXz47wTf3bA1/6qPHh/3x3uFYHAcuY+TDCVwFnZYHKUgs3a8pv8+Ct/VyhvF2WWiEncBMXNm+m+xbpnt0wpbWQvswMrV9aU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=bahdETyk; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="bahdETyk" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2F16F1F00A3A; Wed, 17 Jun 2026 14:48:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1781707728; bh=84/qqfM7ZmuFKR3xy/NTI5td5S5y80iivZPv289eNEA=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=bahdETykUd77T1Yj7mG+QVT9cX9iWRF+x73GqFpmwVMHSxAAzDLHgTyWcZXeCi3Zz /jEkHlOBs1YNKRyu1VCxqM4JmVp8zFlF3v+CqEHhsf+JlfyOrtacjBah/tGgEg/fT1 ROgd4LU/nSV2Q+LvRcKYdbtZwjHAx3jZSQ2WZSQ6aW8CWUZuiRWoV4VprN/WShtJBt MKmVnaia7K9diWE5SLN5bXtUlKMyWRDXxOaBo6nG5ZYCJtmf3lQoZEWUHJGnf9M5iZ O8Mnn2psjX52MFFSQHEPU8p2TdSwonMsomDQlur7aYhlvlA6Qx6T3FTl2lximmymQu 8gczbC3BtG+oQ== From: SeongJae Park To: Cc: SeongJae Park , Andrew Morton , damon@lists.linux.dev, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [RFC PATCH v1.1 11/11] mm/damon/sysfs-schemes: kobject_del() region for populate_region error Date: Wed, 17 Jun 2026 07:48:05 -0700 Message-ID: <20260617144807.91441-12-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260617144807.91441-1-sj@kernel.org> References: <20260617144807.91441-1-sj@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit On CONFIG_DEBUG_KOBJECT_RELEASE enabled kernel, lack of kobject_del() could cause directories creation failures due to the name conflicts. Fix the issue for tried region directories in the error handling path of damon_sysfs_populate_region_dir() by adding a kobject_del() call. Fixes: b574a82d10de ("mm/damon/sysfs-schemes: implement tried_regions//probes/") Signed-off-by: SeongJae Park --- mm/damon/sysfs-schemes.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/mm/damon/sysfs-schemes.c b/mm/damon/sysfs-schemes.c index 0c0c9637b594e..d3b414f7bd205 100644 --- a/mm/damon/sysfs-schemes.c +++ b/mm/damon/sysfs-schemes.c @@ -3132,12 +3132,14 @@ void damos_sysfs_populate_region_dir(struct damon_sysfs_schemes *sysfs_schemes, sysfs_regions->nr_regions)) goto out; if (damos_sysfs_region_add_dirs(region, ctx, r)) - goto out; + goto del_out; list_add_tail(®ion->list, &sysfs_regions->regions_list); sysfs_regions->nr_regions++; return; +del_out: + kobject_del(®ion->kobj); out: kobject_put(®ion->kobj); } -- 2.47.3