From: Vyacheslav Cherkashin <v.cherkashin@samsung.com>
Date: Mon, 19 Aug 2013 07:28:56 +0000 (+0400)
Subject: [FIX] deadlock, when rmmod swap_us_manager
X-Git-Tag: Tizen_SDK_2.3~313
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=b15bbdb5d8b3de010269a4474f75d6284363df7d;p=kernel%2Fswap-modules.git

[FIX] deadlock, when rmmod swap_us_manager
---

diff --git a/us_manager/us_manager.c b/us_manager/us_manager.c
index f8b60d2..80c1b70 100644
--- a/us_manager/us_manager.c
+++ b/us_manager/us_manager.c
@@ -182,7 +182,7 @@ static int do_usm_start(void)
 
 int usm_stop(void)
 {
-	down(&mutex_inst);
+	mutex_lock(&mutex_inst);
 	if (flag_inst == 0)
 		goto unlock;
 
@@ -190,7 +190,7 @@ int usm_stop(void)
 
 	flag_inst = 0;
 unlock:
-	up(&mutex_inst);
+	mutex_unlock(&mutex_inst);
 
 	return 0;
 }
@@ -200,7 +200,7 @@ int usm_start(void)
 {
 	int ret;
 
-	down(&mutex_inst);
+	mutex_lock(&mutex_inst);
 	if (flag_inst)
 		goto unlock;
 
@@ -209,7 +209,7 @@ int usm_start(void)
 		flag_inst = 1;
 
 unlock:
-	up(&mutex_inst);
+	mutex_unlock(&mutex_inst);
 
 	return ret;
 }
@@ -230,10 +230,10 @@ static int __init init_us_manager(void)
 
 static void __exit exit_us_manager(void)
 {
-	down(&mutex_inst);
+	mutex_lock(&mutex_inst);
 	if (flag_inst)
 		do_usm_stop();
-	up(&mutex_inst);
+	mutex_unlock(&mutex_inst);
 
 	uninit_msg();
 	uninit_helper();