[PATCH 1/3] spi: bcm63xx: return error from failed controller suspend

[Jiawen Liu]

spi_controller_suspend() can fail if the SPI core cannot stop the
controller. bcm63xx_spi_suspend() ignored that error, disabled the
controller clock, and returned success.

Return the suspend error before tearing down the clock.

Signed-off-by: Jiawen Liu <1298662399@xxxxxx>
---
 drivers/spi/spi-bcm63xx.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/spi/spi-bcm63xx.c b/drivers/spi/spi-bcm63xx.c
index 43d7b54e3ae8..8cef725aab26 100644
--- a/drivers/spi/spi-bcm63xx.c
+++ b/drivers/spi/spi-bcm63xx.c
@@ -632,8 +632,11 @@ static int bcm63xx_spi_suspend(struct device *dev)
 {
 	struct spi_controller *host = dev_get_drvdata(dev);
 	struct bcm63xx_spi *bs = spi_controller_get_devdata(host);
+	int ret;
 
-	spi_controller_suspend(host);
+	ret = spi_controller_suspend(host);
+	if (ret)
+		return ret;
 
 	clk_disable_unprepare(bs->clk);
 
-- 
2.34.1