Re: [PATCH] spi: fix controller reference leak in acpi_spi_device_alloc()

[Mark Brown]

On Thu, Sep 17, 2026 at 03:48:26PM +0000, Wentao Liang wrote:
> acpi_spi_add_resource() stores the controller returned by
> acpi_spi_find_controller_by_adev() in lookup->ctlr. That lookup takes a
> reference via class_find_device(), which acpi_spi_device_alloc() never
> releases, leaking it on the error paths and on the success path too,
> where spi_alloc_device() takes its own reference. Drop the lookup
> reference when the caller did not pass a controller.

This doesn't apply against current code, please check and resend.

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