4 files changed, 13 insertions, 8 deletions
diff --git a/samples/tracepoints/tp-samples-trace.h b/samples/tracepoints/tp-samples-trace.h
index 0216b55bd64..01724e04c55 100644
--- a/samples/tracepoints/tp-samples-trace.h
+++ b/samples/tracepoints/tp-samples-trace.h
@@ -4,10 +4,10 @@
 #include <linux/proc_fs.h>	/* for struct inode and struct file */
 #include <linux/tracepoint.h>
 
-DEFINE_TRACE(subsys_event,
+DECLARE_TRACE(subsys_event,
 	TPPROTO(struct inode *inode, struct file *file),
 	TPARGS(inode, file));
-DEFINE_TRACE(subsys_eventb,
+DECLARE_TRACE(subsys_eventb,
 	TPPROTO(void),
 	TPARGS());
 #endif
diff --git a/samples/tracepoints/tracepoint-probe-sample.c b/samples/tracepoints/tracepoint-probe-sample.c
index 55abfdda4bd..9e60eb6ca2d 100644
--- a/samples/tracepoints/tracepoint-probe-sample.c
+++ b/samples/tracepoints/tracepoint-probe-sample.c
@@ -28,7 +28,7 @@ static void probe_subsys_eventb(void)
 	printk(KERN_INFO "Event B is encountered\n");
 }
 
-int __init tp_sample_trace_init(void)
+static int __init tp_sample_trace_init(void)
 {
 	int ret;
 
@@ -42,10 +42,11 @@ int __init tp_sample_trace_init(void)
 
 module_init(tp_sample_trace_init);
 
-void __exit tp_sample_trace_exit(void)
+static void __exit tp_sample_trace_exit(void)
 {
 	unregister_trace_subsys_eventb(probe_subsys_eventb);
 	unregister_trace_subsys_event(probe_subsys_event);
+	tracepoint_synchronize_unregister();
 }
 
 module_exit(tp_sample_trace_exit);
diff --git a/samples/tracepoints/tracepoint-probe-sample2.c b/samples/tracepoints/tracepoint-probe-sample2.c
index 5e9fcf4afff..be2a960573f 100644
--- a/samples/tracepoints/tracepoint-probe-sample2.c
+++ b/samples/tracepoints/tracepoint-probe-sample2.c
@@ -18,7 +18,7 @@ static void probe_subsys_event(struct inode *inode, struct file *file)
 		inode->i_ino);
 }
 
-int __init tp_sample_trace_init(void)
+static int __init tp_sample_trace_init(void)
 {
 	int ret;
 
@@ -30,9 +30,10 @@ int __init tp_sample_trace_init(void)
 
 module_init(tp_sample_trace_init);
 
-void __exit tp_sample_trace_exit(void)
+static void __exit tp_sample_trace_exit(void)
 {
 	unregister_trace_subsys_event(probe_subsys_event);
+	tracepoint_synchronize_unregister();
 }
 
 module_exit(tp_sample_trace_exit);
diff --git a/samples/tracepoints/tracepoint-sample.c b/samples/tracepoints/tracepoint-sample.c
index 4ae4b7fcc04..68d5dc0310e 100644
--- a/samples/tracepoints/tracepoint-sample.c
+++ b/samples/tracepoints/tracepoint-sample.c
@@ -13,6 +13,9 @@
 #include <linux/proc_fs.h>
 #include "tp-samples-trace.h"
 
+DEFINE_TRACE(subsys_event);
+DEFINE_TRACE(subsys_eventb);
+
 struct proc_dir_entry *pentry_example;
 
 static int my_open(struct inode *inode, struct file *file)
@@ -29,7 +32,7 @@ static struct file_operations mark_ops = {
 	.open = my_open,
 };
 
-static int example_init(void)
+static int __init example_init(void)
 {
 	printk(KERN_ALERT "example init\n");
 	pentry_example = proc_create("tracepoint-example", 0444, NULL,
@@ -39,7 +42,7 @@ static int example_init(void)
 	return 0;
 }
 
-static void example_exit(void)
+static void __exit example_exit(void)
 {
 	printk(KERN_ALERT "example exit\n");
 	remove_proc_entry("tracepoint-example", NULL);