From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pj1-f54.google.com (mail-pj1-f54.google.com [209.85.216.54]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id BBFB03321B1 for ; Thu, 11 Jun 2026 03:53:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.54 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781149986; cv=none; b=J8D3vVrW09M4xQ68GYX/gQOtdeAItp27loiVxAGaZl3VUPtrFscs3F/ellzwiILSzLsRIt6xtWD2ZAp2TYnBzXB2Lr2ILtLkrzA7aySzWvJz8LCYswCP5eASzkKPpq0dRaHhsqusynX8P7Xl81T1d9LC6no4wJBU3oVSLnU5/Xc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781149986; c=relaxed/simple; bh=aPbMoowg2EuPBMdzYXozwY+p7f4ETcRMlcmaGgXeXec=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=tQGmpinqnS9AMesSJh3Yo/2lqsq1dNpKbjJG0icw0SFLO0FenSlPbk8tgv6Eu05fk5LCbaI5yr0be403fzll9ERHYGEB8WyFMammpE8Ez5vxtvHtlMro9dQ/P5Rz+EK9ppSxXiZHEHQ4PLamvhY+AWZP0chxW5/AF3DXJ3ZKviU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=gLPCZfKg; arc=none smtp.client-ip=209.85.216.54 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="gLPCZfKg" Received: by mail-pj1-f54.google.com with SMTP id 98e67ed59e1d1-36b9d265355so4594455a91.2 for ; Wed, 10 Jun 2026 20:53:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1781149985; x=1781754785; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=kn+zKrxqRiv/1m18H+iH3XPWY8WSKvkkOnHkQbRgV6Y=; b=gLPCZfKgc3MKEghbxJc1PO8S0o/E73aDcDV1GwUGOu+3bdoqOJpXBncuUusdshCJM7 v9XwIT85XuHFVL6AFYLbf5DzkJ7ZgBIMDkxd7Gz1btHS3s4DPw35ZT7v0Sh/sYvZHeo7 Rmqw22Fb9Vyd2gyGcynlFFI1ogYWQhHeynMqCdYVE3dgEcj+PDEZtW3KiCK6Z98res7V 2aoJTtIgl3SvnGXN4z+X0qzTUS8UW2Nx+9JSKnCzqsIy4zWfq1BhuxVSUgLz87m2wnpQ SljsN+R0P3a4FF/ceQw41rRTNJKhCfiwHxfMHwJRfYXJAHrkJPPmjJRP63rkfRerUy1J unqA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1781149985; x=1781754785; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=kn+zKrxqRiv/1m18H+iH3XPWY8WSKvkkOnHkQbRgV6Y=; b=D/qLko1Ety62c8J4XUfGY7/EBfxNNCZnhEPbJ3V8XpLE9G5lzxOmJHNzu8R291n6L0 u8u/xqKbqX2Sr2LrFXqOXv1uoU1vbi6PoXcfVtao8a4OOTclQZBbnQP/lzBikhudQCJt h/ybjawZcdQCwBCRCOANtlVWC2bpjc9K7/q3uPgeVgqcFX3MxaikycWklwFwPvkOvQu2 YCunqoyYbUhKiQoBlVMfpyjGhrDs5T4XMi8ljLFrlRq6UC5nrEZKfvTbBkb/yIHXpfx8 cVl3Nr84yaofONr90RFH4gKhm2SoGiSc/GNj0aI8GNAmFuzmgOAkeMxOMYaxBKFNem/L 2xhQ== X-Gm-Message-State: AOJu0YwcPg8J6xlXW7AG8/hwJ2uHUBGIU2TfiLtlTSaUpm6ZtJJsJpPG 0vhiLwMFMMouKMb3DPYo8Z/kKsYLiixTvcPfjI7J+hQOrYS41mZ+y4Nxzl4j2A== X-Gm-Gg: Acq92OHibtBi7rEiJN7LZea10tVtnHNILs9bAhU4t6BLR4kF/1SGjT0G1K+RpbtBbry tFZNHwrK5LWPR4CpHXTWYhojlVKzS86nulwZjEZ/X2lz9M2Ai+zFwx5bFLWtCY0clbUaNJpxhrt 6NTXeO6Tg0kgIDq7OWl/yqsQcGpHEJxnFtahVtrNrXogQbCuCipAxyaHLLmaFmkl791XfiiyFkZ RyBDtEjIWjpVYNLOeUI4MXakaXSzy4G+EV07ZiaYjw67jOnySCi6Xgt/HqvoS14e13nR0gQQoZB Ax4KnrAFRO5RSGT0vGv+uygdhCvHeQAu+jEWR41bEmEXuaLrzvcVGYnn8dWzq97K7zlvSonaz6K XZO+qg3zl8Gq5yPEU0SmWBNLPLZa0Mph5VbGExbMTGb//EMDbtF+hP8FdvIZpuurWI2Jc7C8oKS +4BrP0bslKu4pRPhJn5n1ibyhBxVY/zwuEM00A2SAGVnc4FrM1+EMwev0fyd8K2IAqJGimb/USh qmb6597ekJH/6AQLe3j85iBg30AmXKmUMCmFWtSDlBmng== X-Received: by 2002:a17:90b:5867:b0:36a:4074:9aa6 with SMTP id 98e67ed59e1d1-3779d2d7c32mr1202152a91.6.1781149985147; Wed, 10 Jun 2026 20:53:05 -0700 (PDT) Received: from ryzen ([2601:644:8000:5b5d:7285:c2ff:fe45:8a32]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-377522a188asm910131a91.3.2026.06.10.20.53.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 10 Jun 2026 20:53:04 -0700 (PDT) From: Rosen Penev To: dmaengine@vger.kernel.org Cc: Vinod Koul , Frank Li , Zhang Wei , Nathan Chancellor , Nick Desaulniers , Bill Wendling , Justin Stitt , linux-kernel@vger.kernel.org (open list), linuxppc-dev@lists.ozlabs.org (open list:FREESCALE DMA DRIVER), llvm@lists.linux.dev (open list:CLANG/LLVM BUILD SUPPORT:Keyword:\b(?i:clang|llvm)\b) Subject: [PATCHv4 01/15] dmaengine: fsldma: kill tasklet before removing channel Date: Wed, 10 Jun 2026 20:52:31 -0700 Message-ID: <20260611035245.13439-2-rosenp@gmail.com> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260611035245.13439-1-rosenp@gmail.com> References: <20260611035245.13439-1-rosenp@gmail.com> Precedence: bulk X-Mailing-List: dmaengine@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Add tasklet_kill() in fsl_dma_chan_remove() to prevent a race where the tasklet is scheduled by the IRQ handler and runs after the channel has been freed. Assisted-by: opencode:big-pickle Signed-off-by: Rosen Penev Reviewed-by: Frank Li --- drivers/dma/fsldma.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c index 22d62d958abd..0e2f84862261 100644 --- a/drivers/dma/fsldma.c +++ b/drivers/dma/fsldma.c @@ -1205,6 +1205,7 @@ static int fsl_dma_chan_probe(struct fsldma_device *fdev, static void fsl_dma_chan_remove(struct fsldma_chan *chan) { + tasklet_kill(&chan->tasklet); irq_dispose_mapping(chan->irq); list_del(&chan->common.device_node); iounmap(chan->regs); -- 2.54.0