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 73F9E3BE64C; Sun, 28 Jun 2026 22:01:30 +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=1782684092; cv=none; b=vCQxpgVvug8JRV58D4U9asi1rGSP3phORenRG+5/27vASA0J3yiYKvdUEl48Jwi7kZppf1ti/FvOHA93jnlYCrIaldy6oekvh7RYPToQ5KAThkVXRHaxnDd8uT2l1snfcccwXdqW1r0TEEX4/lwRSpwwMafsoS166OFs2c24MY8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782684092; c=relaxed/simple; bh=wLSIJJxL/N5karrdU0P3w+WOpiSjx28s4i+7MHUL/2w=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=aD+iDm1RI2o7cLxK/Dd7fqTcK0n78T/t5iGf12DwRT65q3rT2h5yqVJJ8S8c3aHqK0GLPeDBYpCzb8zRpGTz3YEdALXM1BV7qguvVSdqfALpzjUV/LQlYPsCgmPd3Kf0F/09xARCJykr1XzrQfWVMF7lxxXHbP87GzcQLcyqSnc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=BsJUW92c; 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="BsJUW92c" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 339DB1F00A3A; Sun, 28 Jun 2026 22:01:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1782684090; bh=hGvHa5tYAkEF4rEB2p2YMvPKhuvQYixaBRxfKvPf83g=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=BsJUW92cGcgXzmfE5Cl1tSjzny41PlHDmRuN+PtYodY46D8cHIVHe0C5VL9WO6Qi3 LOfS8C/HodvSXQkndzhRImzWg9X2v13W6Gy6DEiSYaYPn+YioEc8BxTgh0mz29bAMR c4JxnIOjXJOswqok3QcLOpFNbujsBEjrxrfEno3HkLRvnubkEWXaP11d8kU/PnTZrF Pm6HO9a8WdwfXRYF30NaIPSOgXcaAPNMiSJ7rK1K/PrgMr6zakhtKOx0kFmw6U6oHZ CQsJNhSXDmVHdzz+ks6i7cQHPvPxsI0kS7PeWkazYCIUM6aJGR1vagMs9T4Kn+3JQ7 YkxKf0Khk4Jig== From: SJ Park To: Andrew Morton Cc: SJ Park , damon@lists.linux.dev, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [PATCH 11/11] mm/damon/sysfs-schemes: kobject_del() region for populate_region error Date: Sun, 28 Jun 2026 15:01:20 -0700 Message-ID: <20260628220121.97360-12-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260628220121.97360-1-sj@kernel.org> References: <20260628220121.97360-1-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: SJ 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 e2c8716be6c9c..41f93a1823bf1 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