From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 16ADFC432C0 for ; Fri, 22 Nov 2019 11:16:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D64B82070E for ; Fri, 22 Nov 2019 11:16:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1574421411; bh=6pmJeMGmgveo2F8W5HfH26LHnPnw77rwTGUaqDtjx2Y=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=ywtRpjbM/D1O4G6cLfeT7PWcimaReU07CY+rOxgGf3599O0P6vLyRBJgP7m7DIK19 IVLR5ktyzOLNeR2+KxYi0oqGVld/TpCSPYwzOESDw52G2YnMjgdr62mCGNZHHgQMPP JS9Pp15nvHvjuE+qAVUejkBMXDMgPG8RLqzV+MAs= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728691AbfKVKtt (ORCPT ); Fri, 22 Nov 2019 05:49:49 -0500 Received: from mail.kernel.org ([198.145.29.99]:59408 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729587AbfKVKtq (ORCPT ); Fri, 22 Nov 2019 05:49:46 -0500 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 3266E2072E; Fri, 22 Nov 2019 10:49:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1574419785; bh=6pmJeMGmgveo2F8W5HfH26LHnPnw77rwTGUaqDtjx2Y=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=yMD8SorJF71cqh+c4tlKT8EiL6T2x+7OyPvBnwOiWO5FbVm7oUMB5DdsfINRMdCjD 1v/4jA3uxWBfTKuHzaBp5iZidm/b78QSo6DS+QmCCUTF2OGehP4PqU5y5nynGdbi82 oERAr4mHE9xE6R0WThoMgeKecq1BolBcbr4dv9MY= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Leilk Liu , Mark Brown , Guenter Roeck Subject: [PATCH 4.14 001/122] spi: mediatek: use correct mata->xfer_len when in fifo transfer Date: Fri, 22 Nov 2019 11:27:34 +0100 Message-Id: <20191122100722.782908443@linuxfoundation.org> X-Mailer: git-send-email 2.24.0 In-Reply-To: <20191122100722.177052205@linuxfoundation.org> References: <20191122100722.177052205@linuxfoundation.org> User-Agent: quilt/0.66 X-stable: review X-Patchwork-Hint: ignore MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Leilk Liu commit a4d8f64f7267a88d4688f5c216926f5f6cafbae6 upstream. when xfer_len is greater than 64 bytes and use fifo mode to transfer, the actual length from the third time is mata->xfer_len but not len in mtk_spi_interrupt(). Signed-off-by: Leilk Liu Signed-off-by: Mark Brown Cc: Guenter Roeck Signed-off-by: Greg Kroah-Hartman --- drivers/spi/spi-mt65xx.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/drivers/spi/spi-mt65xx.c +++ b/drivers/spi/spi-mt65xx.c @@ -522,11 +522,11 @@ static irqreturn_t mtk_spi_interrupt(int mdata->xfer_len = min(MTK_SPI_MAX_FIFO_SIZE, len); mtk_spi_setup_packet(master); - cnt = len / 4; + cnt = mdata->xfer_len / 4; iowrite32_rep(mdata->base + SPI_TX_DATA_REG, trans->tx_buf + mdata->num_xfered, cnt); - remainder = len % 4; + remainder = mdata->xfer_len % 4; if (remainder > 0) { reg_val = 0; memcpy(®_val,