linux-kernel - Re: [PATCH v2 1/2] spi: spidev: fix a race condition when accessing spidev->spi

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Message-ID: <Y7gsiW6lAsz/krsV@sirena.org.uk>
Date:   Fri, 6 Jan 2023 14:13:29 +0000
From:   Mark Brown <broonie@...nel.org>
To:     Bartosz Golaszewski <brgl@...ev.pl>
Cc:     linux-spi@...r.kernel.org, linux-kernel@...r.kernel.org,
        Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: Re: [PATCH v2 1/2] spi: spidev: fix a race condition when accessing
 spidev->spi

On Fri, Jan 06, 2023 at 11:07:18AM +0100, Bartosz Golaszewski wrote:

> - use a mutex instead of an RW semaphore (but for the record: I believe that
>   the semaphore is the better solution here)

Why?  Like I said in my original reply I'm not clear what the extra
complication is buying us.

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