spi: Don't have controller clean up spi device before driver unbind

When a spi device is unregistered and triggers a driver unbind, the
driver might need to access the spi device. So, don't have the
controller clean up the spi device before the driver is unbound. Clean
up the spi device after the driver is unbound.

Fixes: c7299fea6769 ("spi: Fix spi device unregister flow")
Reported-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Saravana Kannan <saravanak@google.com>
Tested-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20210505164734.175546-1-saravanak@google.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 98048af..e353b7a 100644 (file)
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -714,8 +714,6 @@ void spi_unregister_device(struct spi_device *spi)
        if (!spi)
                return;
 
-       spi_cleanup(spi);
-
        if (spi->dev.of_node) {
                of_node_clear_flag(spi->dev.of_node, OF_POPULATED);
                of_node_put(spi->dev.of_node);
@@ -723,7 +721,9 @@ void spi_unregister_device(struct spi_device *spi)
        if (ACPI_COMPANION(&spi->dev))
                acpi_device_clear_enumerated(ACPI_COMPANION(&spi->dev));
        device_remove_software_node(&spi->dev);
-       device_unregister(&spi->dev);
+       device_del(&spi->dev);
+       spi_cleanup(spi);
+       put_device(&spi->dev);
 }
 EXPORT_SYMBOL_GPL(spi_unregister_device);