linux-kernel - Re: [PATCH] iommu: Fix reference count leak in iommu_group

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Date:   Fri, 29 May 2020 15:28:42 +0200
From:   Joerg Roedel <joro@...tes.org>
To:     wu000273@....edu
Cc:     kjlu@....edu, Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Alex Williamson <alex.williamson@...hat.com>,
        iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] iommu: Fix reference count leak in iommu_group_alloc.

On Wed, May 27, 2020 at 04:00:19PM -0500, wu000273@....edu wrote:
> From: Qiushi Wu <wu000273@....edu>
> 
> kobject_init_and_add() takes reference even when it fails.
> Thus, when kobject_init_and_add() returns an error,
> kobject_put() must be called to properly clean up the kobject.
> 
> Fixes: d72e31c93746 ("iommu: IOMMU Groups")
> Signed-off-by: Qiushi Wu <wu000273@....edu>
> ---
>  drivers/iommu/iommu.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Applied, thanks.