From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B4038258CC1; Wed, 20 Aug 2025 17:39:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755711554; cv=none; b=F23z6O37QGAAn5jBWcWC3Ldcx0VHEjvdRenNYvLhRJwnCZLy/cruk5BVgah5zgq4KBvIAkrqbbN/W2M65C7aDSlYoqKr8zq5cwr+jM6heZ3z3xUmGp1p0jsx+na3Nz88fr4bP9cm9h6SR14EfdKjgh6MyEU7N/vNbdwOPoODh/Y= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755711554; c=relaxed/simple; bh=VmLARSRZ3emeAhF8ETKiy5Sw/HbEJcOO7vCEichxxHM=; h=From:To:Cc:In-Reply-To:References:Subject:Message-Id:Date: MIME-Version:Content-Type; b=OKCC1a+fwmwyM7ayX8Gdumzf81TdAmAof65RCOvMNeSXe2TXC3oElgsar5Z7N7fOiL/FJHLAVsCSbf8jvgcTkgw8R7MA44H15fD4gEjfZru76u/tO0PUezjAPTHn1kFt8tJhxLTOY6E4fKIcM5PdxWm7+Cj0W2ahqPqPAfikSss= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=u4PBjgTL; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="u4PBjgTL" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E2B18C113CF; Wed, 20 Aug 2025 17:39:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1755711554; bh=VmLARSRZ3emeAhF8ETKiy5Sw/HbEJcOO7vCEichxxHM=; h=From:To:Cc:In-Reply-To:References:Subject:Date:From; b=u4PBjgTLb9AaFKW4dEDaCfaluABgXB0w7ED8NnvTtaddkAi0qworgH9jegHnLvgeI l6ht6tS2J0dg6zYJknSoJrERAO8fd2BvhfBcn8MstGgCJYn1JvyQRUzFdSFQPRjL6F mnZjimospDg9yilqP1KZIFaiEuhUei4Rlj8USAFq+1qgVTKJVpDl2NThYOfsB/73TT QBS1EtZvFnuIeJ1fIyNGgNLZzlSFpQW5o34C5Un73vBzC0rQtFVtg3sUowj8W8b6cy iQK2gkvq94nl+0wSxw0sh08kqZ+0xhE0t2cg6hR2PUv5MU1UO9n9vrm4z7A/E/DUby 99UgrZ7KuRKWA== From: Vinod Koul To: vinicius.gomes@intel.com, dave.jiang@intel.com, fenghuay@nvidia.com, xueshuai@linux.alibaba.com, Yi Sun Cc: dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org, gordon.jin@intel.com In-Reply-To: <20250729150313.1934101-1-yi.sun@intel.com> References: <20250729150313.1934101-1-yi.sun@intel.com> Subject: Re: [PATCH RESEND v3 0/2] dmaengine: idxd: Fix refcount and cleanup issues on module unload Message-Id: <175571155143.80631.2976104483965927036.b4-ty@kernel.org> Date: Wed, 20 Aug 2025 23:09:11 +0530 Precedence: bulk X-Mailing-List: dmaengine@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Mailer: b4 0.13.0 On Tue, 29 Jul 2025 23:03:11 +0800, Yi Sun wrote: > This patch series addresses two issues related to the device reference > counting and cleanup path in the idxd driver. > > Recent changes introduced improper put_device() calls and duplicated > cleanup logic, leading to refcount underflow and potential use-after-free > during module unload. > > [...] Applied, thanks! [1/2] dmaengine: idxd: Remove improper idxd_free commit: f41c538881eec4dcf5961a242097d447f848cda6 [2/2] dmaengine: idxd: Fix refcount underflow on module unload commit: b7cb9a034305d52222433fad10c3de10204f29e7 Best regards, -- ~Vinod