From patchwork Wed Dec 22 04:48:12 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kunihiko Hayashi X-Patchwork-Id: 12691083 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 C542CC433EF for ; Wed, 22 Dec 2021 04:48:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242480AbhLVEsW (ORCPT ); Tue, 21 Dec 2021 23:48:22 -0500 Received: from mx.socionext.com ([202.248.49.38]:36866 "EHLO mx.socionext.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235801AbhLVEsW (ORCPT ); Tue, 21 Dec 2021 23:48:22 -0500 Received: from unknown (HELO kinkan2-ex.css.socionext.com) ([172.31.9.52]) by mx.socionext.com with ESMTP; 22 Dec 2021 13:48:21 +0900 Received: from mail.mfilter.local (m-filter-1 [10.213.24.61]) by kinkan2-ex.css.socionext.com (Postfix) with ESMTP id A37CD2059054; Wed, 22 Dec 2021 13:48:21 +0900 (JST) Received: from 172.31.9.51 (172.31.9.51) by m-FILTER with ESMTP; Wed, 22 Dec 2021 13:48:21 +0900 Received: from plum.e01.socionext.com (unknown [10.212.243.119]) by kinkan2.css.socionext.com (Postfix) with ESMTP id 58EE0B568B; Wed, 22 Dec 2021 13:48:21 +0900 (JST) From: Kunihiko Hayashi To: Mark Brown Cc: Masami Hiramatsu , Keiji Hayashibara , linux-spi@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Kunihiko Hayashi , stable@vger.kernel.org Subject: [PATCH] spi: uniphier: Fix a bug that doesn't point to private data correctly Date: Wed, 22 Dec 2021 13:48:12 +0900 Message-Id: <1640148492-32178-1-git-send-email-hayashi.kunihiko@socionext.com> X-Mailer: git-send-email 2.7.4 Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org In uniphier_spi_remove(), there is a wrong code to get private data from the platform device, so the driver can't be removed properly. The driver should get spi_master from the platform device and retrieve the private data from it. Cc: Fixes: 5ba155a4d4cc ("spi: add SPI controller driver for UniPhier SoC") Signed-off-by: Kunihiko Hayashi --- drivers/spi/spi-uniphier.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/drivers/spi/spi-uniphier.c b/drivers/spi/spi-uniphier.c index 8900e51e1a1c..342ee8d2c476 100644 --- a/drivers/spi/spi-uniphier.c +++ b/drivers/spi/spi-uniphier.c @@ -767,12 +767,13 @@ static int uniphier_spi_probe(struct platform_device *pdev) static int uniphier_spi_remove(struct platform_device *pdev) { - struct uniphier_spi_priv *priv = platform_get_drvdata(pdev); + struct spi_master *master = platform_get_drvdata(pdev); + struct uniphier_spi_priv *priv = spi_master_get_devdata(master); - if (priv->master->dma_tx) - dma_release_channel(priv->master->dma_tx); - if (priv->master->dma_rx) - dma_release_channel(priv->master->dma_rx); + if (master->dma_tx) + dma_release_channel(master->dma_tx); + if (master->dma_rx) + dma_release_channel(master->dma_rx); clk_disable_unprepare(priv->clk);