From: zhaoxp3 <zhaoxp3@motorola.com>
Date: Thu, 15 Nov 2018 05:43:37 +0000 (+0800)
Subject: utags:sync same owner permission
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=2b320a480e22ebd769992701e0e1460dab94d15a;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

utags:sync same owner permission

utags needs to be read-write in tcmd daemon whose group id is
system,many operation need group write permission like root user.

1.tcmd needs to add new node by lock and new operation
2.tcmd needs to access node /proc/config/all/new etc

https://gerrit.mot.com/1236562
https://gerrit.mot.com/1235016
https://gerrit.mot.com/1231861

Change-Id: I67dd27d8984ee80f414abb023a79252f3991b5cd
Signed-off-by: zhaoxp3 <zhaoxp3@motorola.com>
Reviewed-on: https://gerrit.mot.com/1269582
SLTApproved: Slta Waiver
SME-Granted: SME Approvals Granted
Tested-by: Jira Key
Submit-Approved: Jira Key
---

diff --git a/drivers/misc/utag/utags.c b/drivers/misc/utag/utags.c
index ff4734e8d2c3..8f95125941fe 100644
--- a/drivers/misc/utag/utags.c
+++ b/drivers/misc/utag/utags.c
@@ -588,7 +588,7 @@ static int proc_utag_file(char *utag_name, char *utag_type,
 		node->mode = mode;
 		node->dir = dnode->dir;
 		node->ctrl = ctrl;
-		node->file = proc_create_data(node->file_name, 0,
+		node->file = proc_create_data(node->file_name, 0660,
 			dnode->dir, fops, node);
 
 		pr_debug("created file [%s/%s]\n",
@@ -614,23 +614,23 @@ static int proc_utag_util(struct ctrl *ctrl)
 {
 	struct proc_dir_entry *dir;
 
-	dir = proc_mkdir("all", ctrl->root);
+	dir = proc_mkdir_data("all", 0771, ctrl->root, NULL);
 	if (!dir) {
 		pr_err("failed to create util\n");
 		return -EIO;
 	}
 
-	if (!proc_create_data("new", 0600, dir, &new_fops, ctrl)) {
+	if (!proc_create_data("new", 0220, dir, &new_fops, ctrl)) {
 		pr_err("Failed to create utag new entry\n");
 		return -EIO;
 	}
 
-	if (!proc_create_data("lock", 0600, dir, &lock_fops, ctrl)) {
+	if (!proc_create_data("lock", 0660, dir, &lock_fops, ctrl)) {
 		pr_err("Failed to create lock entry\n");
 		return -EIO;
 	}
 
-	if (!proc_create_data(".delete", 0600, dir, &delete_fops, ctrl)) {
+	if (!proc_create_data(".delete", 0220, dir, &delete_fops, ctrl)) {
 		pr_err("Failed to create delete entry\n");
 		return -EIO;
 	}
@@ -657,7 +657,7 @@ static struct proc_dir_entry *proc_utag_dir(struct ctrl *ctrl,
 		return dnode->dir;
 	}
 
-	dir = proc_mkdir(tname, parent);
+	dir = proc_mkdir_data(tname, 0771, parent, NULL);
 	if (!dir) {
 		pr_err("failed to create dir %s\n", tname);
 		return ERR_PTR(-ENOMEM);
@@ -1872,7 +1872,7 @@ static int utags_probe(struct platform_device *pdev)
 		return -ENOMEM;
 	}
 
-	ctrl->root = proc_mkdir(ctrl->dir_name, NULL);
+	ctrl->root = proc_mkdir_data(ctrl->dir_name, 0771, NULL, NULL);
 	if (!ctrl->root) {
 		destroy_workqueue(ctrl->load_queue);
 		destroy_workqueue(ctrl->store_queue);
@@ -1883,7 +1883,7 @@ static int utags_probe(struct platform_device *pdev)
 	if (!strncmp(ctrl->dir_name, HW_ROOT, sizeof(HW_ROOT)))
 		ctrl->hwtag = 1;
 
-	if (!proc_create_data("reload", 0600, ctrl->root, &reload_fops, ctrl)) {
+	if (!proc_create_data("reload", 0660, ctrl->root, &reload_fops, ctrl)) {
 		pr_err("Failed to create reload entry\n");
 		destroy_workqueue(ctrl->load_queue);
 		destroy_workqueue(ctrl->store_queue);