Re: [PATCH v1] spi: xtensa-xtfpga: Fix a double put() in xtfpga_spi_remove()
From: Mark Brown
Date: Mon Dec 12 2022 - 10:37:13 EST
On Sat, Dec 10, 2022 at 06:48:02AM -0800, Max Filippov wrote:
> Hi Christophe,
>
> On Sat, Dec 10, 2022 at 3:52 AM Christophe JAILLET
> <christophe.jaillet@xxxxxxxxxx> wrote:
> > 'master' is allocated with devm_spi_alloc_master(), there is no need to
> > put it explicitly in the remove function.
> > spi_bitbang_stop(&xspi->bitbang);
> > - spi_master_put(master);
> This put is matching the get in the spi_bitbang_start.
> It was discussed here:
> https://lore.kernel.org/linux-spi/CAMo8BfJaD7pG_iutY8jordysjChyzhTpVSqpxXh3QoZsj2QmaQ@xxxxxxxxxxxxxx/
Probably worth a comment though since it is a bit of a gotcha. Ideally
we'd improve this in the bitbang code but that's harder.
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