From: Lubomir Rintel <lkundrak@xxxxx>
[ Upstream commit 1274204542f683e1d8491ebe9cc86284d5a8ebcc ]
Don't undo the PM initialization if we error out before we managed to
initialize it. The call to pm_runtime_disable() without being preceded
by pm_runtime_enable() would disturb the balance of the Force.
In practice, this happens if we fail to allocate any of the GPIOS ("cs",
"ready") due to -EPROBE_DEFER because we're getting probled before the
GPIO driver.
Signed-off-by: Lubomir Rintel <lkundrak@xxxxx>
Link: https://lore.kernel.org/r/20190719122713.3444318-1-lkundrak@xxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/spi/spi-pxa2xx.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c
index d6c30bd1583f..6551188fea23 100644
--- a/drivers/spi/spi-pxa2xx.c
+++ b/drivers/spi/spi-pxa2xx.c
@@ -1742,14 +1742,16 @@ static int pxa2xx_spi_probe(struct platform_device *pdev)
status = spi_register_controller(master);
if (status != 0) {
dev_err(&pdev->dev, "problem registering spi master\n");
- goto out_error_clock_enabled;
+ goto out_error_pm_runtime_enabled;
}
return status;
-out_error_clock_enabled:
+out_error_pm_runtime_enabled:
pm_runtime_put_noidle(&pdev->dev);
pm_runtime_disable(&pdev->dev);
+
+out_error_clock_enabled:
clk_disable_unprepare(ssp->clk);
out_error_dma_irq_alloc:
--
2.25.1
