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 6977243901B; Tue, 21 Jul 2026 22:23:57 +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=1784672638; cv=none; b=LtfDHpRmiIQpDMH5uYDv+WvfS3AvKY7Vr+3Qke+L7Ovn3kmLofDyALC6lo/ogWY0f/c+RsuRv5ijJuBShYl0T0urOTzrtkSODih1ceQHIFNEfkKmkqcG376rwO1g++kKwcJs/oOsDUKohvPfjQbxQGRNNOT8yw5y5p40jLaS92I= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784672638; c=relaxed/simple; bh=MaJ4m7rKzw8Bc/A7W5t4+VCvPHxcUdzgYvViUE8QVYU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Py7p0+6gMRb6rgdm50EwClqUtcvJkm+qA4CFd99zOwXgg/UNACwXBrBHDPpjxJIOCv09a7rT2eGkRrtrFOlcR2Hf0aozcoesQp5gASr8Jxl0T95I2RSiQGwRzJnCay9yYVQdFisfJQWLi1CA+M3VavXwiPxLjeUZ0IxDgSEhEsw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=eBjKEagW; 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="eBjKEagW" Received: by smtp.kernel.org (Postfix) with ESMTPSA id CF8F01F000E9; Tue, 21 Jul 2026 22:23:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1784672637; bh=+AEE4FdYPzHJUbcM9iCNm73fKlwjQb3DjyU0lwiNWgg=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=eBjKEagWrXTz3dVX30kU6OVZvDXqpCnPtSJDlTb7Z81LIVYQW58j5VzGGK/x56oOm xcn8NyxLkqH3ACoUTThKsOF5GbnTTlsQV2YQakI7evcVNY/EYsKZp1tNqjE9CQ5LXK DBAU+gljtsceRhh1AYqiiEesd1Dpmjs7EwaNwDho= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Wentao Liang , Niklas Cassel , Damien Le Moal Subject: [PATCH 5.15 700/843] ata: pata_pxa: Fix DMA channel leak on probe error Date: Tue, 21 Jul 2026 17:25:35 +0200 Message-ID: <20260721152421.797506815@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260721152405.946368001@linuxfoundation.org> References: <20260721152405.946368001@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: Wentao Liang commit fcaf242e7fc406e78f444a35441e3b58f5e28781 upstream. When dmaengine_slave_config() fails, the DMA channel acquired by dma_request_chan() is not released before returning the error, leaking the channel reference. Fix by adding dma_release_channel() in the error path. The ata_host_activate() error path already correctly releases the DMA channel. Cc: stable@vger.kernel.org Fixes: 88622d80af82 ("ata: pata_pxa: dmaengine conversion") Signed-off-by: Wentao Liang Reviewed-by: Niklas Cassel Signed-off-by: Damien Le Moal Signed-off-by: Greg Kroah-Hartman --- drivers/ata/pata_pxa.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/ata/pata_pxa.c +++ b/drivers/ata/pata_pxa.c @@ -287,6 +287,7 @@ static int pxa_ata_probe(struct platform ret = dmaengine_slave_config(data->dma_chan, &config); if (ret < 0) { dev_err(&pdev->dev, "dma configuration failed: %d\n", ret); + dma_release_channel(data->dma_chan); return ret; }