linux-kernel - Re: [PATCH-next] sched: Fix Dereference after null check

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Message-ID: <20210515210406.GH5618@worktop.programming.kicks-ass.net>
Date:   Sat, 15 May 2021 23:04:06 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Khaled ROMDHANI <khaledromdhani216@...il.com>
Cc:     mingo@...hat.com, juri.lelli@...hat.com,
        vincent.guittot@...aro.org, dietmar.eggemann@....com,
        rostedt@...dmis.org, bsegall@...gle.com, mgorman@...e.de,
        bristot@...hat.com, linux-kernel@...r.kernel.org,
        kernel-janitors@...r.kernel.org
Subject: Re: [PATCH-next] sched: Fix Dereference after null check

On Sat, May 15, 2021 at 06:11:17PM +0100, Khaled ROMDHANI wrote:
> The group_cfs_rq derefrence the 'se' variable that could
> be passed as NULL pointer. Fix this by adding a check
> against the sched entity 'se' before the derefrence.
> 
> Addresses-Coverity: ("Dereference after null check")
> Signed-off-by: Khaled ROMDHANI <khaledromdhani216@...il.com>

Please, burn that piece of garbage known as Coverity and go do something
useful.