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spi: pxa2xx: Balance runtime PM enable/disable on error 

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@v3.sk>
Link: https://lore.kernel.org/r/20190719122713.3444318-1-lkundrak@v3.sk
Signed-off-by: Mark Brown <broonie@kernel.org>
alistair/sunxi64-5.4-dsi
Lubomir Rintel 2019-07-19 14:27:13 +02:00 committed by Mark Brown
parent 2922d1cc16
commit 1274204542
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GPG Key ID: 24D68B725D5487D0
1 changed files with 4 additions and 2 deletions
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6
drivers/spi/spi-pxa2xx.c
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@ -1831,14 +1831,16 @@ static int pxa2xx_spi_probe(struct platform_device *pdev)
status = devm_spi_register_controller(&pdev->dev, controller);
if (status != 0) {
dev_err(&pdev->dev, "problem registering spi controller\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: