spi: atmel-quadspi: Don't leak clk enable count in pm resume

The pm resume call is supposed to enable two clocks. If the second enable
fails the callback reports failure but doesn't undo the first enable.

So call clk_disable() for the first clock when clk_enable() for the second
one fails.

Fixes: 4a2f83b7f780 ("spi: atmel-quadspi: add runtime pm support")
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Link: https://lore.kernel.org/r/20230317084232.142257-2-u.kleine-koenig@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/spi/atmel-quadspi.c b/drivers/spi/atmel-quadspi.c
index f4632cb..0c6f80d 100644 (file)
--- a/drivers/spi/atmel-quadspi.c
+++ b/drivers/spi/atmel-quadspi.c
@@ -786,7 +786,11 @@ static int __maybe_unused atmel_qspi_runtime_resume(struct device *dev)
        if (ret)
                return ret;
 
-       return clk_enable(aq->qspick);
+       ret = clk_enable(aq->qspick);
+       if (ret)
+               clk_disable(aq->pclk);
+
+       return ret;
 }
 
 static const struct dev_pm_ops __maybe_unused atmel_qspi_pm_ops = {