From: Dan Carpenter <dan.carpenter@oracle.com>
To: Ian Cowan <ian@linux.cowan.aero>
Cc: mripard@kernel.org, paul.kocialkowski@bootlin.com,
mchehab@kernel.org, gregkh@linuxfoundation.org, wens@csie.org,
jernej.skrabec@gmail.com, samuel@sholland.org,
linux-media@vger.kernel.org, linux-staging@lists.linux.dev,
linux-arm-kernel@lists.infradead.org,
linux-sunxi@lists.linux.dev
Subject: Re: [PATCH] staging: sunxi: cedrus: centralize cedrus_open exit
Date: Mon, 25 Apr 2022 12:20:49 +0300 [thread overview]
Message-ID: <20220425092048.GL2462@kadam> (raw)
In-Reply-To: <20220423180111.91602-1-ian@linux.cowan.aero>
On Sat, Apr 23, 2022 at 02:01:11PM -0400, Ian Cowan wrote:
> Refactor the cedrus_open() function so that there is only one exit to
> the function instead of 2. This prevents a future change from preventing
> the mutex from being unlocked after a successful exit.
>
> Signed-off-by: Ian Cowan <ian@linux.cowan.aero>
No. You are just making the code ugly and complicated for no reason.
I work in static analysis so I have focussed a lot of attention on
locking bugs. In real life this theory is totally bogus. Single exit
paths only cause bugs, they don't prevent bugs.
regards,
dan carpenter
next prev parent reply other threads:[~2022-04-25 9:21 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-23 18:01 [PATCH] staging: sunxi: cedrus: centralize cedrus_open exit Ian Cowan
2022-04-25 9:20 ` Dan Carpenter [this message]
2022-04-25 9:29 ` Paul Kocialkowski
2022-04-25 10:00 ` Dan Carpenter
2022-04-26 7:39 ` Paul Kocialkowski
2022-04-28 10:26 ` Dan Carpenter
2022-04-28 11:56 ` Paul Kocialkowski
2022-04-25 9:36 ` Dan Carpenter
2022-04-25 15:52 ` Jernej Škrabec
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