make fmemopen's w+ mode truncate the buffer

[musl] / src / thread / synccall.c

diff --git a/src/thread/synccall.c b/src/thread/synccall.c
index f681357..ba2f258 100644 (file)
--- a/src/thread/synccall.c
+++ b/src/thread/synccall.c
@@ -14,7 +14,7 @@ static struct chain {
        sem_t target_sem, caller_sem;
 } *volatile head;
 
-static volatile int synccall_lock[2];
+static volatile int synccall_lock[1];
 static volatile int target_tid;
 static void (*callback)(void *), *context;
 static volatile int dummy = 0;