[PATCH] spi: uniphier: Fix a bug that doesn't point to private data correctly

[Kunihiko Hayashi]

In uniphier_spi_remove(), there is a wrong code to get private data from
the platform device, so the driver can't be removed properly.

The driver should get spi_master from the platform device and retrieve
the private data from it.

Cc: <stable at vger.kernel.org>
Fixes: 5ba155a4d4cc ("spi: add SPI controller driver for UniPhier SoC")
Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko at socionext.com>
---
 drivers/spi/spi-uniphier.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/spi/spi-uniphier.c b/drivers/spi/spi-uniphier.c
index 8900e51e1a1c..342ee8d2c476 100644
--- a/drivers/spi/spi-uniphier.c
+++ b/drivers/spi/spi-uniphier.c
@@ -767,12 +767,13 @@ static int uniphier_spi_probe(struct platform_device *pdev)
 
 static int uniphier_spi_remove(struct platform_device *pdev)
 {
-	struct uniphier_spi_priv *priv = platform_get_drvdata(pdev);
+	struct spi_master *master = platform_get_drvdata(pdev);
+	struct uniphier_spi_priv *priv = spi_master_get_devdata(master);
 
-	if (priv->master->dma_tx)
-		dma_release_channel(priv->master->dma_tx);
-	if (priv->master->dma_rx)
-		dma_release_channel(priv->master->dma_rx);
+	if (master->dma_tx)
+		dma_release_channel(master->dma_tx);
+	if (master->dma_rx)
+		dma_release_channel(master->dma_rx);
 
 	clk_disable_unprepare(priv->clk);
 
-- 
2.7.4