X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;f=libust%2Ftracectl.c;h=2d4341d3b418cd4957b8ab2efc95fbf564f6520e;hb=c5fdc88852bc232e24fb3941ea5d5719b4490a87;hp=dbd39657e6f507585b8f2e9c4a29115dd96917e4;hpb=dd5c82ed4531106d357001debf3073572ee84500;p=ust.git

diff --git a/libust/tracectl.c b/libust/tracectl.c
index dbd3965..2d4341d 100644
--- a/libust/tracectl.c
+++ b/libust/tracectl.c
@@ -774,15 +774,18 @@ void create_listener(void)
 {
 #ifdef USE_CLONE
 	static char listener_stack[16384];
+	int result;
 #else
 	pthread_t thread;
 #endif
 
-	if(have_listener)
+	if(have_listener) {
+		WARN("not creating listener because we already had one");
 		return;
+	}
 
 #ifdef USE_CLONE
-	result = clone(listener_main, listener_stack+sizeof(listener_stack)-1, CLONE_FS | CLONE_FILES | CLONE_VM | CLONE_SIGHAND | CLONE_THREAD, NULL);
+	result = clone((int (*)(void *)) listener_main, listener_stack+sizeof(listener_stack)-1, CLONE_FS | CLONE_FILES | CLONE_VM | CLONE_SIGHAND | CLONE_THREAD, NULL);
 	if(result == -1) {
 		perror("clone");
 		return;