From: Vinod Koul <vkoul@kernel.org>
To: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
Cc: error27@gmail.com, kernel-janitors@vger.kernel.org,
dan.carpenter@linaro.org, Fenghua Yu <fenghua.yu@intel.com>,
Dave Jiang <dave.jiang@intel.com>,
dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] dmaengine: idxd: Fix passing freed memory in idxd_cdev_open()
Date: Tue, 16 May 2023 23:21:01 +0530 [thread overview]
Message-ID: <ZGPChVyCDwX2wEJs@matsya> (raw)
In-Reply-To: <20230509060716.2830630-1-harshit.m.mogalapalli@oracle.com>
On 08-05-23, 23:07, Harshit Mogalapalli wrote:
> Smatch warns:
> drivers/dma/idxd/cdev.c:327:
> idxd_cdev_open() warn: 'sva' was already freed.
>
> When idxd_wq_set_pasid() fails, the current code unbinds sva and then
> goes to 'failed_set_pasid' where iommu_sva_unbind_device is called
> again causing the above warning.
> [ device_user_pasid_enabled(idxd) is still true when calling
> failed_set_pasid ]
Applied, thanks
--
~Vinod
prev parent reply other threads:[~2023-05-16 17:51 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-09 6:07 [PATCH] dmaengine: idxd: Fix passing freed memory in idxd_cdev_open() Harshit Mogalapalli
2023-05-09 15:13 ` Dave Jiang
2023-05-10 22:08 ` Fenghua Yu
2023-05-16 17:51 ` Vinod Koul [this message]
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