From: 黄涛 <huangtao@rock-chips.com>
Date: Mon, 22 Apr 2013 09:46:56 +0000 (+0800)
Subject: rk: only allow root access /proc/clocks and /sys/dvfs
X-Git-Tag: firefly_0821_release~7237
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=a41d6442f1f69376f385fc4eb9b4378046a9af7b;p=firefly-linux-kernel-4.4.55.git

rk: only allow root access /proc/clocks and /sys/dvfs
---

diff --git a/arch/arm/plat-rk/clock.c b/arch/arm/plat-rk/clock.c
index 2fdd5bb5a0a4..473d161354a8 100644
--- a/arch/arm/plat-rk/clock.c
+++ b/arch/arm/plat-rk/clock.c
@@ -754,7 +754,7 @@ static const struct file_operations proc_clk_fops = {
 
 static int __init clk_proc_init(void)
 {
-	proc_create("clocks", 0, NULL, &proc_clk_fops);
+	proc_create("clocks", S_IFREG | S_IRUSR | S_IRGRP, NULL, &proc_clk_fops);
 	return 0;
 
 }
diff --git a/arch/arm/plat-rk/dvfs.c b/arch/arm/plat-rk/dvfs.c
index bda91b07ba30..3551288cf9c8 100644
--- a/arch/arm/plat-rk/dvfs.c
+++ b/arch/arm/plat-rk/dvfs.c
@@ -1494,10 +1494,10 @@ struct dvfs_attribute {
 static struct dvfs_attribute dvfs_attrs[] = {
 	/*     node_name	permision		show_func	store_func */
 #ifdef CONFIG_RK_CLOCK_PROC
-	__ATTR(dvfs_tree,	S_IRUGO | S_IWUSR,	dvfs_tree_show,	dvfs_tree_store),
-	__ATTR(avs_init,	S_IRUGO | S_IWUSR,	avs_init_show,	avs_init_store),
-	//__ATTR(avs_dyn,		S_IRUGO | S_IWUSR,	avs_dyn_show,	avs_dyn_store),
-	__ATTR(avs_now,		S_IRUGO | S_IWUSR,	avs_now_show,	avs_now_store),
+	__ATTR(dvfs_tree,	S_IRUSR | S_IRGRP | S_IWUSR,	dvfs_tree_show,	dvfs_tree_store),
+	__ATTR(avs_init,	S_IRUSR | S_IRGRP | S_IWUSR,	avs_init_show,	avs_init_store),
+//	__ATTR(avs_dyn,		S_IRUSR | S_IRGRP | S_IWUSR,	avs_dyn_show,	avs_dyn_store),
+	__ATTR(avs_now,		S_IRUSR | S_IRGRP | S_IWUSR,	avs_now_show,	avs_now_store),
 #endif
 };