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 97DD654781; Mon, 17 Aug 2026 14:22:02 +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=1786976523; cv=none; b=fykkVIrIKl+9rKhqcT/Hw4X04DAo7Yt5qulvu1t9xT5lmnRuRJMggO7IOKo7YoPMKXIPOnTivLeLOSHFaVY3UoD+tAmHXSNqWrk7T0Cyg+qJbNb/MqZFPVqPlNV8llCAXspjyUIy8l9I5lLP0XRpakoPAa4AbWqNQJ+aQhlnWjc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786976523; c=relaxed/simple; bh=fPIrJQ3F3bRBJ9hnCi0CiCWY9MbvYab5UKkbvz48mBM=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=OlBt/wsvb177pU6zoJvNGFoBJdEtOdc9DMCoQLgiFAisdwP6OwlqRtexPeV2DHoTZUrvXQXUA3yopSN4CftGLrO6bta5vJQMlo316hYPNZr+peM4tAzWTI6Vs9zj56VCuPmcqFIbZWazZ6OYJFSfIIyAeOIcAZ4MkvRgdg3fIOA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=RWrDobp8; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="RWrDobp8" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2853B1F000E9; Mon, 17 Aug 2026 14:22:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1786976522; bh=d5H9cWV4bymQxLs9cnnAiLZqqZ/1zMnZ3aHPzkyhLL8=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=RWrDobp8LU5a3B4CmRe9AZReT3cMvvB24dWfihlpkobwzSEzMNL3KevNgUCPEPdlQ xypn/HBBSaeDPdCz7eyLepY/W1lWJfvDFZrnxAQerlbtCQGX1HFRVCnxGHlYjSa1kH oAxWMF7RrpPa+/zDInQ4mQ52t21DEiy0HAEzrZ6Y= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Pengpeng Hou , Miquel Raynal , Sasha Levin Subject: [PATCH 5.15 013/456] mtd: mtdswap: remove debugfs stats file on teardown Date: Mon, 17 Aug 2026 15:26:43 +0200 Message-ID: <20260817132540.416461215@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260817132539.792407575@linuxfoundation.org> References: <20260817132539.792407575@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Pengpeng Hou [ Upstream commit 66fb31358108d10245b9e4ef0eef3e7d9747055e ] mtdswap_add_debugfs() creates an mtdswap_stats debugfs file under the per-MTD debugfs directory, but mtdswap_remove_dev() never removes it before freeing the mtdswap_dev. Store the returned dentry and remove it during device teardown before the driver-private state is freed. Fixes: a32159024620 ("mtd: Add mtdswap block driver") Signed-off-by: Pengpeng Hou Signed-off-by: Miquel Raynal Signed-off-by: Sasha Levin --- drivers/mtd/mtdswap.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/mtd/mtdswap.c b/drivers/mtd/mtdswap.c index 7e309270ddd402..e890b5ec6a72f4 100644 --- a/drivers/mtd/mtdswap.c +++ b/drivers/mtd/mtdswap.c @@ -125,6 +125,7 @@ struct mtdswap_dev { char *page_buf; char *oob_buf; + struct dentry *debugfs_stats; }; struct mtdswap_oobdata { @@ -1263,7 +1264,8 @@ static int mtdswap_add_debugfs(struct mtdswap_dev *d) if (IS_ERR_OR_NULL(root)) return -1; - debugfs_create_file("mtdswap_stats", S_IRUSR, root, d, &mtdswap_fops); + d->debugfs_stats = debugfs_create_file("mtdswap_stats", 0400, root, + d, &mtdswap_fops); return 0; } @@ -1464,6 +1466,7 @@ static void mtdswap_remove_dev(struct mtd_blktrans_dev *dev) { struct mtdswap_dev *d = MTDSWAP_MBD_TO_MTDSWAP(dev); + debugfs_remove(d->debugfs_stats); del_mtd_blktrans_dev(dev); mtdswap_cleanup(d); kfree(d); -- 2.53.0