Merge "msm: msm_bus: Add mutex to protect node_list" (60b854cb) · Commits · e / devices / android_kernel_sony_msm8998

drivers/soc/qcom/msm_bus/msm_bus_rules.c

+7 −2

Original line number	Diff line number	Diff line
		/* Copyright (c) 2014-2015, The Linux Foundation. All rights reserved.
		/* Copyright (c) 2014-2017, 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
		@@ -410,8 +410,10 @@ void print_all_rules(void)
		{
		struct rule_node_info *node_it = NULL;

		mutex_lock(&msm_bus_rules_lock);
		list_for_each_entry(node_it, &node_list, link)
		print_rules(node_it);
		mutex_unlock(&msm_bus_rules_lock);
		}

		void print_rules_buf(char *buf, int max_buf)
		@@ -421,6 +423,7 @@ void print_rules_buf(char *buf, int max_buf)
		int i;
		int cnt = 0;

		mutex_lock(&msm_bus_rules_lock);
		list_for_each_entry(node_it, &node_list, link) {
		cnt += scnprintf(buf + cnt, max_buf - cnt,
		"\n Now printing rules for Node %d cur_rule %d\n",
		@@ -452,6 +455,7 @@ void print_rules_buf(char *buf, int max_buf)
		node_rule->rule_ops.mode);
		}
		}
		mutex_unlock(&msm_bus_rules_lock);
		}

		static int copy_rule(struct bus_rule_type src, struct rules_def node_rule,
		@@ -721,11 +725,12 @@ bool msm_rule_are_rules_registered(void)
		{
		bool ret = false;

		mutex_lock(&msm_bus_rules_lock);
		if (list_empty(&node_list))
		ret = false;
		else
		ret = true;

		mutex_unlock(&msm_bus_rules_lock);
		return ret;
		}