[PATCH 1/3] spi: atmel-quadspi: Don't leak clk enable count in pm resume
Uwe Kleine-König
u.kleine-koenig at pengutronix.de
Fri Mar 17 01:42:30 PDT 2023
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 at pengutronix.de>
---
drivers/spi/atmel-quadspi.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/spi/atmel-quadspi.c b/drivers/spi/atmel-quadspi.c
index f4632cb07495..0c6f80ddea57 100644
--- 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 = {
--
2.39.2
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