linux-kernel - Re: [PATCH] RDMA/iw_cgxb4: Fix an error handling path in 'c4iw

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Message-ID: <20191115210020.GA29581@ziepe.ca>
Date:   Fri, 15 Nov 2019 17:00:20 -0400
From:   Jason Gunthorpe <jgg@...pe.ca>
To:     Christophe JAILLET <christophe.jaillet@...adoo.fr>
Cc:     bharat@...lsio.com, dledford@...hat.com,
        linux-rdma@...r.kernel.org, linux-kernel@...r.kernel.org,
        kernel-janitors@...r.kernel.org
Subject: Re: [PATCH] RDMA/iw_cgxb4: Fix an error handling path in
 'c4iw_connect()'

On Mon, Sep 23, 2019 at 09:07:46PM +0200, Christophe JAILLET wrote:
> We should jump to fail3 in order to undo the 'xa_insert_irq()' call.
> 
> Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
> ---
> Not sure which Fixes tag to use because of the many refactorings in this
> area. So I've choosen to use none :).
> The issue was already there in 4a740838bf44c. This commit has renamed
> all labels because a new fail1 was introduced. I've not searched further.
> 
> Naming of error labels should be improved. Having nowadays a fail5
> between fail2 and fail3 (because fail5 was the last
> error handling path added) is not that readable.
> However, it goes beyong the purpose of this patch.
> 
> Maybe, just using a fail2a, just as already done in 9f5a9632e412 (which
> introduced fail5) would be enough.
> ---
>  drivers/infiniband/hw/cxgb4/cm.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)

The disaster of the error label aside, this does fix the bug, so
applied to for-next

Thanks,
Jason