linux-kernel - Re: [PATCH][next] RDMA/ucma: fix memory leak of mc on an xa

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Message-ID: <20200902235909.GK24045@ziepe.ca>
Date:   Wed, 2 Sep 2020 20:59:09 -0300
From:   Jason Gunthorpe <jgg@...pe.ca>
To:     Colin King <colin.king@...onical.com>
Cc:     Doug Ledford <dledford@...hat.com>,
        Leon Romanovsky <leon@...nel.org>, linux-rdma@...r.kernel.org,
        kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH][next] RDMA/ucma: fix memory leak of mc on an xa_alloc
 failure

On Wed, Sep 02, 2020 at 05:28:05PM +0100, Colin King wrote:
> From: Colin Ian King <colin.king@...onical.com>
> 
> Currently when an xa_alloc failure occurs the error exit path leaks
> the allocated object mc.  Fix this by adding an error return path
> that frees mc and rename error exit paths err3 to err4 and err2 to err3.
> 
> Fixes: 95fe51096b7a ("RDMA/ucma: Remove mc_list and rely on xarray")
> Signed-off-by: Colin Ian King <colin.king@...onical.com>
> ---
>  drivers/infiniband/core/ucma.c | 11 ++++++-----
>  1 file changed, 6 insertions(+), 5 deletions(-)

Alex beat you too it, so I will use his patch, thanks

Jason