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serial: omap: suspend device on probe errors

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Make sure to actually suspend the device before returning after a failed
(or deferred) probe.

Note that autosuspend must be disabled before runtime pm is disabled in
order to balance the usage count due to a negative autosuspend delay as
well as to make the final put suspend the device synchronously.

Fixes: 388bc2622680 ("omap-serial: Fix the error handling in the omap_serial probe")
Cc: Shubhrajyoti D <shubhrajyoti@ti.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Acked-by: Tony Lindgren <tony@atomide.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Johan Hovold 2017-04-10 11:21:39 +02:00 committed by Greg Kroah-Hartman
parent 099bd73dc1
commit 77e6fe7fd2
1 changed files with 2 additions and 1 deletions
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3
drivers/tty/serial/omap-serial.c
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@ -1770,7 +1770,8 @@ static int serial_omap_probe(struct platform_device *pdev)
return 0;
err_add_port:
pm_runtime_put(&pdev->dev);
pm_runtime_dont_use_autosuspend(&pdev->dev);
pm_runtime_put_sync(&pdev->dev);
pm_runtime_disable(&pdev->dev);
pm_qos_remove_request(&up->pm_qos_request);
device_init_wakeup(up->dev, false);