[PATCH] spi: bcmbca-hsspi: disable clocks on resume failure

[Can Peng]

bcmbca_hsspi_resume() enables the HSSPI clock, and optionally the PLL
clock, before restarting the SPI controller queue.

If spi_controller_resume() fails, the function currently reports success
and leaves those clocks enabled. Propagate the error and disable the
clocks before returning.

Fixes: a38a2233f23b ("spi: bcmbca-hsspi: Add driver for newer HSSPI controller")
Cc: stable at vger.kernel.org
Signed-off-by: Can Peng <pengcan at kylinos.cn>
---
 drivers/spi/spi-bcmbca-hsspi.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/spi/spi-bcmbca-hsspi.c b/drivers/spi/spi-bcmbca-hsspi.c
index af88ce04948b..2aed876e5deb 100644
--- a/drivers/spi/spi-bcmbca-hsspi.c
+++ b/drivers/spi/spi-bcmbca-hsspi.c
@@ -598,7 +598,13 @@ static int bcmbca_hsspi_resume(struct device *dev)
 		}
 	}
 
-	spi_controller_resume(host);
+	ret = spi_controller_resume(host);
+	if (ret) {
+		if (bs->pll_clk)
+			clk_disable_unprepare(bs->pll_clk);
+		clk_disable_unprepare(bs->clk);
+		return ret;
+	}
 
 	return 0;
 }
-- 
2.53.0