From nobody Wed Oct 1 22:31:25 2025 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 926B123506A; Tue, 30 Sep 2025 15:09:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1759244986; cv=none; b=B7GDV4KmR2A7o7IoQFfCdH0UpIJNc9zytKE/cW//d4zSyaukvO8ATf9hOavnOKw0YOobfDY/QYIhy2tOe6KBqjqpoIpm3+BMB0M1D8ilavuUjEjSWZ0+bibw1gz7WJaBifdDilQZGIuBRlevp7u+LFE00Fkcic8dpS4PkCnhi+o= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1759244986; c=relaxed/simple; bh=2d5mlbzXOEFsyGOAy7ajjjm9WNfNLYF3z4LyKA5hDZY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Au+l6iT067NxFXIL4h4JDg290s/VLpmhy8WC7Rm/W23+ielf9kYeNx/Zrl/yTCj3vNcw7LsQXh4NSC5s70aBg0zRFQOUbmbTFJxjY6Z9Cw5uNTic5vv+yt0uC1vV9vFNUTNeU6VLvrvNbsY/KE2OZBPEpjKgfr9HNrevcyw1AeE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=Lj6v4nBa; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="Lj6v4nBa" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C3C58C4CEF0; Tue, 30 Sep 2025 15:09:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1759244986; bh=2d5mlbzXOEFsyGOAy7ajjjm9WNfNLYF3z4LyKA5hDZY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Lj6v4nBa+eawqtVfF84Khk5TBoxC+nap+CTnXeyc88t//36Mgc9DWzZPWpUmg/Z5I m6XoaAsuVc2vbcZzwJ8m6pl7CGxS6PzW53D+VpWOfbMf7oLHgnXx7WNQgq2981L8Jb KyzJryplUmvIXqYP1enYjpMmjdNdI9j7FxlNBqjE= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Miquel Raynal , Richard Weinberger , Vignesh Raghavendra , Maxime Coquelin , Alexandre Torgue , Philipp Zabel , Christophe Kerello , Cai Huoqing , linux-mtd@lists.infradead.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Jack Wang , Sasha Levin Subject: [PATCH 5.15 031/151] mtd: rawnand: stm32_fmc2: Fix dma_map_sg error check Date: Tue, 30 Sep 2025 16:46:01 +0200 Message-ID: <20250930143828.856879967@linuxfoundation.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20250930143827.587035735@linuxfoundation.org> References: <20250930143827.587035735@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" 5.15-stable review patch. If anyone has any objections, please let me know. Reviewed-by: Christophe Kerello ------------------ From: Jack Wang [ Upstream commit 43b81c2a3e6e07915151045aa13a6e8a9bd64419 ] dma_map_sg return 0 on error, in case of error return -EIO. Cc: Miquel Raynal Cc: Richard Weinberger Cc: Vignesh Raghavendra Cc: Maxime Coquelin Cc: Alexandre Torgue Cc: Philipp Zabel Cc: Christophe Kerello Cc: Cai Huoqing Cc: linux-mtd@lists.infradead.org Cc: linux-stm32@st-md-mailman.stormreply.com Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Jack Wang Reviewed-by: Christophe Kerello Signed-off-by: Miquel Raynal Link: https://lore.kernel.org/linux-mtd/20220819060801.10443-5-jinpu.wang@i= onos.com Stable-dep-of: 513c40e59d5a ("mtd: rawnand: stm32_fmc2: avoid overlapping m= appings on ECC buffer") Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- drivers/mtd/nand/raw/stm32_fmc2_nand.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) --- a/drivers/mtd/nand/raw/stm32_fmc2_nand.c +++ b/drivers/mtd/nand/raw/stm32_fmc2_nand.c @@ -860,8 +860,8 @@ static int stm32_fmc2_nfc_xfer(struct na =20 ret =3D dma_map_sg(nfc->dev, nfc->dma_data_sg.sgl, eccsteps, dma_data_dir); - if (ret < 0) - return ret; + if (!ret) + return -EIO; =20 desc_data =3D dmaengine_prep_slave_sg(dma_ch, nfc->dma_data_sg.sgl, eccsteps, dma_transfer_dir, @@ -891,8 +891,10 @@ static int stm32_fmc2_nfc_xfer(struct na =20 ret =3D dma_map_sg(nfc->dev, nfc->dma_ecc_sg.sgl, eccsteps, dma_data_dir); - if (ret < 0) + if (!ret) { + ret =3D -EIO; goto err_unmap_data; + } =20 desc_ecc =3D dmaengine_prep_slave_sg(nfc->dma_ecc_ch, nfc->dma_ecc_sg.sgl,