linux-kernel - [PATCH] spi: Detach spi device from driver when unregister it

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Message-Id: <20171018072208.9791-1-jeffy.chen@rock-chips.com>
Date:   Wed, 18 Oct 2017 15:22:08 +0800
From:   Jeffy Chen <jeffy.chen@...k-chips.com>
To:     linux-kernel@...r.kernel.org
Cc:     briannorris@...omium.org, heiko@...ech.de,
        gregkh@...uxfoundation.org, dmitry.torokhov@...il.com,
        rjw@...ysocki.net, dianders@...omium.org, tfiga@...omium.org,
        broonie@...nel.org, seanpaul@...omium.org,
        thierry.reding@...il.com, Jeffy Chen <jeffy.chen@...k-chips.com>,
        linux-spi@...r.kernel.org
Subject: [PATCH] spi: Detach spi device from driver when unregister it

Make sure spi device detached before unregistering it.

Signed-off-by: Jeffy Chen <jeffy.chen@...k-chips.com>
---

 drivers/spi/spi.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 6e65524cbfd9..9114efb2eb8c 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -648,6 +648,8 @@ void spi_unregister_device(struct spi_device *spi)
 	}
 	if (ACPI_COMPANION(&spi->dev))
 		acpi_device_clear_enumerated(ACPI_COMPANION(&spi->dev));
+
+	device_release_driver(&spi->dev);
 	device_unregister(&spi->dev);
 }
 EXPORT_SYMBOL_GPL(spi_unregister_device);
-- 
2.11.0