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Commit a0a5aeff authored by Avaneesh Kumar Dwivedi's avatar Avaneesh Kumar Dwivedi
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qcom: subsystem_restart: Ignore SSR requests during system reboot/shutdown 



When a system reboot or shutdown is already underway, ignore SSR errors
so that the system reboot/shutdown process is uninterrupted. However, log
the SSR request so that we know that the subsystem behaved unexpectedly.

Change-Id: Ibfac397bf38749b095dacab4cadf7b77bd003e88
Signed-off-by: default avatarAvaneesh Kumar Dwivedi <akdwived@codeaurora.org>
parent 1a970af7

drivers/soc/qcom/subsystem_restart.c

+13 −1
Original line number Diff line number Diff line 
/* Copyright (c) 2011-2015, The Linux Foundation. All rights reserved.

/* Copyright (c) 2011-2016, The Linux Foundation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and
@@ -890,6 +890,18 @@ static void subsystem_restart_wq_func(struct work_struct *work) 
		track = &dev->track;

	}



	/*

	 * If a system reboot/shutdown is under way, ignore subsystem errors.

	 * However, print a message so that we know that a subsystem behaved

	 * unexpectedly here.

	 */

	if (system_state == SYSTEM_RESTART

		|| system_state == SYSTEM_POWER_OFF) {

		WARN(1, "SSR aborted: %s, system reboot/shutdown is under way\n",

			desc->name);

		return;

	}



	mutex_lock(&track->lock);

	do_epoch_check(dev);