Re: [PATCH v2 1/2] spi: add new_device/delete_device sysfs interface

[Mark Brown]

On Sat, Apr 25, 2026 at 05:34:24PM +0000, Vishwaroop A wrote:

> +	mutex_lock(&ctlr->add_lock);
> +	status = __spi_add_device(spi, NULL);
> +	if (status) {
> +		mutex_unlock(&ctlr->add_lock);
> +		spi_dev_put(spi);
> +		return status;
> +	}

The locking on unregistration is conditional on SPI_DYNAMIC - I think
this feature needs to be dependent on SPI_DYNAMIC since it's adding a
new way of dynamically instantiating and removing SPI devices.

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