This is a note to let you know that I've just added the patch titled
serial: omap: suspend device on probe errors
to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
serial-omap-suspend-device-on-probe-errors.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 77e6fe7fd2b7cba0bf2f2dc8cde51d7b9a35bf74 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@xxxxxxxxxx>
Date: Mon, 10 Apr 2017 11:21:39 +0200
Subject: serial: omap: suspend device on probe errors
From: Johan Hovold <johan@xxxxxxxxxx>
commit 77e6fe7fd2b7cba0bf2f2dc8cde51d7b9a35bf74 upstream.
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@xxxxxx>
Signed-off-by: Johan Hovold <johan@xxxxxxxxxx>
Acked-by: Tony Lindgren <tony@xxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/tty/serial/omap-serial.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/tty/serial/omap-serial.c
+++ b/drivers/tty/serial/omap-serial.c
@@ -1712,7 +1712,8 @@ static int serial_omap_probe(struct plat
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);
Patches currently in stable-queue which might be from johan@xxxxxxxxxx are
queue-4.9/usb-serial-ftdi_sio-add-device-id-for-microsemi-arrow-sf2plus-dev-kit.patch
queue-4.9/bluetooth-hci_bcm-add-missing-tty-device-sanity-check.patch
queue-4.9/bluetooth-hci_intel-add-missing-tty-device-sanity-check.patch
queue-4.9/serial-omap-fix-runtime-pm-handling-on-unbind.patch
queue-4.9/serial-omap-suspend-device-on-probe-errors.patch
queue-4.9/staging-gdm724x-gdm_mux-fix-use-after-free-on-module-unload.patch