[PATCH 1/4] spi: atcspi200: return error from failed controller suspend

[Jiawen Liu]

spi_controller_suspend() can fail when the SPI core cannot stop the
controller. atcspi_suspend() ignored that error and disabled the
controller clock anyway.

Return the error before disabling the clock.

Signed-off-by: Jiawen Liu <1298662399@xxxxxx>
---
 drivers/spi/spi-atcspi200.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/spi/spi-atcspi200.c b/drivers/spi/spi-atcspi200.c
index 6d4b6aeb3f5b..e0fd101a62bc 100644
--- a/drivers/spi/spi-atcspi200.c
+++ b/drivers/spi/spi-atcspi200.c
@@ -599,8 +599,11 @@ static int atcspi_suspend(struct device *dev)
 {
 	struct spi_controller *host = dev_get_drvdata(dev);
 	struct atcspi_dev *spi = spi_controller_get_devdata(host);
+	int ret;
 
-	spi_controller_suspend(host);
+	ret = spi_controller_suspend(host);
+	if (ret)
+		return ret;
 
 	clk_disable_unprepare(spi->clk);
 
-- 
2.34.1