linux-kernel - Re: [PATCH] spi: spi-fsl-qspi: call spi_unregister

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Message-ID: <20190311170334.GA14368@sirena.org.uk>
Date:   Mon, 11 Mar 2019 17:03:34 +0000
From:   Mark Brown <broonie@...nel.org>
To:     Volker Haspel <volker.haspel@...utronix.de>
Cc:     linux-kernel@...r.kernel.org, linux-spi@...r.kernel.org,
        Han Xu <han.xu@....com>, john.ogness@...utronix.de
Subject: Re: [PATCH] spi: spi-fsl-qspi: call spi_unregister_controller

On Thu, Mar 07, 2019 at 11:30:08AM +0100, Volker Haspel wrote:
> The driver does not clearly unregister the spi controller.
> Therefore calling an unbind and bind again will end up in a
> Kernel crash.
> Each driver who calls spi_register_controller() in the probe function
> has to call spi_unregister_controller() too.

Why not change it to use devm?

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