[PATCH] spi: rockchip-sfc: disable runtime PM in remove

[Jiawen Liu]

rockchip_sfc_probe enables runtime PM and leaves the device active with
a usage count held by pm_runtime_get_noresume(). The remove callback
only disables the clocks and does not disable runtime PM, leaving the
device in an inconsistent state and leaking the runtime PM reference.
Add the missing runtime PM teardown in rockchip_sfc_remove to balance
the probe's enable and get_noresume calls.

Signed-off-by: jiawen <1298662399 at qq.com>
---
diff --git a/drivers/spi/spi-rockchip-sfc.c b/drivers/spi/spi-rockchip-sfc.c
--- a/drivers/spi/spi-rockchip-sfc.c
+++ b/drivers/spi/spi-rockchip-sfc.c
@@ -743,6 +743,11 @@
 	struct spi_controller *host = sfc->host;
 
 	spi_unregister_controller(host);
+	pm_runtime_get_sync(&pdev->dev);
+	pm_runtime_put_noidle(&pdev->dev);
+	pm_runtime_disable(&pdev->dev);
+	pm_runtime_set_suspended(&pdev->dev);
+	pm_runtime_dont_use_autosuspend(&pdev->dev);
 	dma_unmap_single(&pdev->dev, sfc->dma_buffer, sfc->max_iosize,
 			 DMA_BIDIRECTIONAL);
 	free_pages((unsigned long)sfc->buffer, get_order(sfc->max_iosize));