From patchwork Tue Jul 11 09:04:33 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ruben Vandamme X-Patchwork-Id: 13308302 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 08EB1EB64DD for ; Tue, 11 Jul 2023 09:13:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231828AbjGKJNz (ORCPT ); Tue, 11 Jul 2023 05:13:55 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42720 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231731AbjGKJNx (ORCPT ); Tue, 11 Jul 2023 05:13:53 -0400 X-Greylist: delayed 448 seconds by postgrey-1.37 at lindbergh.monkeyblade.net; Tue, 11 Jul 2023 02:13:49 PDT Received: from smtpout2.mo529.mail-out.ovh.net (smtpout2.mo529.mail-out.ovh.net [79.137.123.220]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 688F4122 for ; Tue, 11 Jul 2023 02:13:49 -0700 (PDT) Received: from mxplan4.mail.ovh.net (unknown [10.109.156.206]) by mo529.mail-out.ovh.net (Postfix) with ESMTPS id D3C61209BE; Tue, 11 Jul 2023 09:06:19 +0000 (UTC) Received: from vandamme.email (37.59.142.110) by DAG5EX2.mxp4.local (172.16.2.10) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.27; Tue, 11 Jul 2023 11:06:19 +0200 Authentication-Results: garm.ovh; auth=pass (GARM-110S00441c1caea-27c1-4831-9bf8-8b99f5069e5e, 42C4D1DE23A36265E4C80AD40BF611DDAC8555CF) smtp.auth=kernel-org-500524@vandamme.email X-OVh-ClientIp: 78.29.192.179 From: Ruben Vandamme To: CC: Ruben Vandamme Subject: [PATCH] spi: omap2-mcspi: fix memory leak on slave transfer abort Date: Tue, 11 Jul 2023 11:04:33 +0200 Message-ID: <20230711090546.654136-2-kernel-org-500524@vandamme.email> X-Mailer: git-send-email 2.41.0 MIME-Version: 1.0 X-Originating-IP: [37.59.142.110] X-ClientProxiedBy: DAG9EX1.mxp4.local (172.16.2.17) To DAG5EX2.mxp4.local (172.16.2.10) X-Ovh-Tracer-GUID: 305f258d-3d32-48ea-98ce-85c5b70aa114 X-Ovh-Tracer-Id: 1984680063938802330 X-VR-SPAMSTATE: OK X-VR-SPAMSCORE: 0 X-VR-SPAMCAUSE: gggruggvucftvghtrhhoucdtuddrgedviedrfedtgdduvdcutefuodetggdotefrodftvfcurfhrohhfihhlvgemucfqggfjpdevjffgvefmvefgnecuuegrihhlohhuthemucehtddtnecunecujfgurhephffvvefufffkofgggfgtihesthekredtredttdenucfhrhhomheptfhusggvnhcugggrnhgurghmmhgvuceokhgvrhhnvghlqdhorhhgqdehtddthedvgeesvhgrnhgurghmmhgvrdgvmhgrihhlqeenucggtffrrghtthgvrhhnpeehvefggefhkeekvedutdeulefgvdeifeejgffgkeektdekudegieeltdehvdetvdenucfkphepuddvjedrtddrtddruddpfeejrdehledrudegvddruddutddpjeekrddvledrudelvddrudejleenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepihhnvghtpeduvdejrddtrddtrddupdhmrghilhhfrhhomhepoehkvghrnhgvlhdqohhrghdqhedttdehvdegsehvrghnuggrmhhmvgdrvghmrghilheqpdhnsggprhgtphhtthhopedupdhrtghpthhtoheplhhinhhugidqshhpihesvhhgvghrrdhkvghrnhgvlhdrohhrghdpkhgvrhhnvghlqdhorhhgqdehtddthedvgeesvhgrnhgurghmmhgvrdgvmhgrihhlpdfovfetjfhoshhtpehmohehvdelpdhmohguvgepshhmthhpohhuth Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org In case a slave mode transfer is aborted, the scatterlists need to be freed before exiting the function. Signed-off-by: Ruben Vandamme --- drivers/spi/spi-omap2-mcspi.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/spi/spi-omap2-mcspi.c b/drivers/spi/spi-omap2-mcspi.c index 8331e247bf5c..48800afc35b0 100644 --- a/drivers/spi/spi-omap2-mcspi.c +++ b/drivers/spi/spi-omap2-mcspi.c @@ -514,15 +514,16 @@ omap2_mcspi_rx_dma(struct spi_device *spi, struct spi_transfer *xfer, omap2_mcspi_set_dma_req(spi, 1, 1); ret = mcspi_wait_for_completion(mcspi, &mcspi_dma->dma_rx_completion); + + for (x = 0; x < nb_sizes; x++) + kfree(sg_out[x]); + if (ret || mcspi->slave_aborted) { dmaengine_terminate_sync(mcspi_dma->dma_rx); omap2_mcspi_set_dma_req(spi, 1, 0); return 0; } - for (x = 0; x < nb_sizes; x++) - kfree(sg_out[x]); - if (mcspi->fifo_depth > 0) return count;