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=-19.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,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 92FAFC2B9F4 for ; Mon, 28 Jun 2021 15:20:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7831E61949 for ; Mon, 28 Jun 2021 15:20:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237467AbhF1PXK (ORCPT ); Mon, 28 Jun 2021 11:23:10 -0400 Received: from mail.kernel.org ([198.145.29.99]:37006 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235779AbhF1O7t (ORCPT ); Mon, 28 Jun 2021 10:59:49 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id EEDCA61D5E; Mon, 28 Jun 2021 14:40:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1624891242; bh=ygJUikFoBOHvpXqPw40mEBnNIsK8/VMRuBeqtXwJ7ms=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=U4KNT+M0WR8WEHyvJLD5pkqKiv80fM3ldPCn7+c4E2RoNxaNTj+xdbxNJL9en+pYs W4TKkwxODVW8uCyCIb3oMd8GuHZPLpXRPoXlpW5k3PERM0ZYJjGvet23zyuvnTxjRa TK6q1e27Lqu/3nIzM6do41XQkY8IEMrdEeDgWoFK+/Qh3KWisQVIP686tiCSTbDK1M PAPZgSg+1QM18W8+4+mzYrM4DyDYYYnW0pUD3/Iq3Ll21E9h3fKx9w9B/pCFKpWmr2 3ZBGKZ6bxVbyfjLA3Yn6wV6Ekfgz0N8t3037PSzsu+hYKWZagUld5o0VIXt9DgDCFe mLFFOAJuAeF9g== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Bumyong Lee , Jongho Park , Chanho Park , Vinod Koul , Greg Kroah-Hartman Subject: [PATCH 4.9 43/71] dmaengine: pl330: fix wrong usage of spinlock flags in dma_cyclc Date: Mon, 28 Jun 2021 10:39:35 -0400 Message-Id: <20210628144003.34260-44-sashal@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210628144003.34260-1-sashal@kernel.org> References: <20210628144003.34260-1-sashal@kernel.org> MIME-Version: 1.0 X-KernelTest-Patch: http://kernel.org/pub/linux/kernel/v4.x/stable-review/patch-4.9.274-rc1.gz X-KernelTest-Tree: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git X-KernelTest-Branch: linux-4.9.y X-KernelTest-Patches: git://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git X-KernelTest-Version: 4.9.274-rc1 X-KernelTest-Deadline: 2021-06-30T14:39+00:00 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Bumyong Lee commit 4ad5dd2d7876d79507a20f026507d1a93b8fff10 upstream. flags varible which is the input parameter of pl330_prep_dma_cyclic() should not be used by spinlock_irq[save/restore] function. Signed-off-by: Jongho Park Signed-off-by: Bumyong Lee Signed-off-by: Chanho Park Link: https://lore.kernel.org/r/20210507063647.111209-1-chanho61.park@samsung.com Fixes: f6f2421c0a1c ("dmaengine: pl330: Merge dma_pl330_dmac and pl330_dmac structs") Cc: stable@vger.kernel.org Signed-off-by: Vinod Koul Signed-off-by: Greg Kroah-Hartman --- drivers/dma/pl330.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c index f5a9bb123188..d8997dafb876 100644 --- a/drivers/dma/pl330.c +++ b/drivers/dma/pl330.c @@ -2579,13 +2579,15 @@ static struct dma_async_tx_descriptor *pl330_prep_dma_cyclic( for (i = 0; i < len / period_len; i++) { desc = pl330_get_desc(pch); if (!desc) { + unsigned long iflags; + dev_err(pch->dmac->ddma.dev, "%s:%d Unable to fetch desc\n", __func__, __LINE__); if (!first) return NULL; - spin_lock_irqsave(&pl330->pool_lock, flags); + spin_lock_irqsave(&pl330->pool_lock, iflags); while (!list_empty(&first->node)) { desc = list_entry(first->node.next, @@ -2595,7 +2597,7 @@ static struct dma_async_tx_descriptor *pl330_prep_dma_cyclic( list_move_tail(&first->node, &pl330->desc_pool); - spin_unlock_irqrestore(&pl330->pool_lock, flags); + spin_unlock_irqrestore(&pl330->pool_lock, iflags); return NULL; } -- 2.30.2