linux-kernel - Re: [PATCH net-XXX] SUNRPC: Add an IS

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Message-ID: <20231013123435.GK29570@kernel.org>
Date:   Fri, 13 Oct 2023 14:34:35 +0200
From:   Simon Horman <horms@...nel.org>
To:     Dan Carpenter <dan.carpenter@...aro.org>
Cc:     Xiyu Yang <xiyuyang19@...an.edu.cn>,
        Chuck Lever <chuck.lever@...cle.com>,
        Jeff Layton <jlayton@...nel.org>, Neil Brown <neilb@...e.de>,
        Olga Kornievskaia <kolga@...app.com>,
        Dai Ngo <Dai.Ngo@...cle.com>, Tom Talpey <tom@...pey.com>,
        Trond Myklebust <trond.myklebust@...merspace.com>,
        Anna Schumaker <anna@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        "J. Bruce Fields" <bfields@...ldses.org>,
        Xin Tan <tanxin.ctf@...il.com>, linux-nfs@...r.kernel.org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        kernel-janitors@...r.kernel.org
Subject: Re: [PATCH net-XXX] SUNRPC: Add an IS_ERR() check back to where it
 was

On Wed, Oct 11, 2023 at 11:00:22AM +0300, Dan Carpenter wrote:
> This IS_ERR() check was deleted during in a cleanup because, at the time,
> the rpcb_call_async() function could not return an error pointer.  That
> changed in commit 25cf32ad5dba ("SUNRPC: Handle allocation failure in
> rpc_new_task()") and now it can return an error pointer.  Put the check
> back.
> 
> A related revert was done in commit 13bd90141804 ("Revert "SUNRPC:
> Remove unreachable error condition"").
> 
> Fixes: 037e910b52b0 ("SUNRPC: Remove unreachable error condition in rpcb_getport_async()")
> Signed-off-by: Dan Carpenter <dan.carpenter@...aro.org>

Thanks,

I've reviewed the logic of this commit along with the description
and it matches up in my mind.

Reviewed-by: Simon Horman <horms@...nel.org>